ALTA MONNIT User manual

Remote Monitoring for Business
ALTA®Hydrogen Sulfide Gas Sensor
USER GUIDE

PAGE II
TABLE OF CONTENTS
CAUTION SYMBOL EXPLANATION
The following caution symbol appears on the product. This symbol indicates caution and a potential risk of
danger. Carefully read the warning attached with each symbol.
I. ABOUT THE ALTA WIRELESS HYDROGEN SULFIDE SENSOR 1
II. ORDER OF OPERATIONS 2
III. SENSOR SETUP 2
ADD DEVICE 2
SETUP 3
VALIDATION 3
ACTIONS 4
IV. BATTERIES AND INSTALLATION 4
INSTALLING/REPLACING BATTERIES 4
SENSOR PLACEMENT 5
MOUNTING THE SENSOR 5
ANTENNA ORIENTATION 5
CLEANING 5
V. SENSOR OVERVIEW IN iMONNIT 6
MENU SYSTEM 6
DETAILS VIEW 6
READINGS VIEW 7
ACTIONS VIEW 8
SETTINGS VIEW 8
CALIBRATION VIEW 9
SCALE VIEW 9
VI. ACTIONS OVERVIEW 10
CREATING AN ACTION 10
VII. TROUBLESHOOTING 13
VIII. MONNIT DATA SECURITY 15
IX. CERTIFICATIONS 16
X. SUPPORT 18
XI. WARRANTY 18
XII. USER SAFETY REQUIREMENTS 19

PAGE 1
I. ABOUT THE WIRELESS HYDROGEN SULFIDE SENSOR
The ALTA Wireless Hydrogen Sulfide (H2S) Sensor measures the levels of toxic H2S gas in the environment. The sensor
produces instantaneous and 8-hour time weighted average (TWA) H2S readings along with temperature. Every five
seconds the sensor takes a new temperature-compensated H2S measurement and checks this measurement against a
configurable threshold. If the threshold is crossed, the sensor transmits data immediately. This means the sensor can
report a critical gas level as soon as it's detected. If the threshold isn't crossed, the sensor transmits H2S data at a
configurable Heartbeat. Using configurable Actions within iMonnit Software, you can set up notifications to be sent via
text, email, and phone call as different triggering events occur? gas level, battery level, inactivity, etc. The instantaneous
reading is calculated using 40 seconds of data averaged together for improved stability and accuracy. The TWA reading is
calculated using eight hours of data.
ALTA WIRELESS FEATURES
- Wireless range of 1,200+ feet through 12+ walls1
- Frequency-Hopping Spread Spectrum (FHSS)
- Best-in-class interference immunity
- Best-in-class power management for longer battery life2
- Encrypt-RF®Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
- Onboard data memory stores up to 3,200 readings:
? 10-minute heartbeats = 22 days
? 2-hour heartbeats = 266 days
- Over-the-air updates (future proof)
- The iMonnit Premiere Cloud-Based Wireless Sensor Management & Monitoring Software is free for 45 days to
configure sensors, view data, and set up alerts to be sent via SMS text, email, or call. The system will automatically
default to the free iMonnit Basic version if you don't purchase an annual subscription to iMonnit Premiere.
1Actual range may vary depending on environment.
2Battery life is determined by sensor reporting frequency and other variables. Other power options are also available.
EXAMPLE APPLICATIONS
- Crude oil production
- Natural gas production
- Wastewater treatment
- Utility facilities
- Sewers
- Additional applications
- Measures H2S levels in surrounding air.
- Provides instantaneous and TWA H2S readings.
- Works within excellent range (0 to 50 ppm).
- Offers configurable thresholds.
- Responds in less than one minute.
HYDROGEN SULFIDE SENSOR FEATURES

II. ORDER OF OPERATIONS
It is important to understand the order of operations for activating your sensor. If performed out of sequence, your sensor
may have trouble communicating with iMonnit. Please perform the steps below in the order indicated to make sure you
are performing your setup correctly.
1. Create an iMonnit account (If new user).
2. Register all sensors and gateways to a network in iMonnit.
Sensors can only communicate with gateways on the same iMonnit network.
3. Connect and power on the gateway and wait until it checks into iMonnit.
4. Power on the sensor and verify it checks into iMonnit.
We recommend powering the sensor on near the gateway then moving it to the
installation location, checking signal strength along the way.
5. Configure the sensor for use. (This can be done at any point after step 2.)
6. Install the sensor in the final location.
Note: Specific ALTA Hydrogen Sulfide Sensor setup is covered in more
detail in the following sections.
Note: For information on setting up iMonnit and the gateway refer to
the iMonnit user guide and the gateway's user guide.
Desktop Mobile
III. SENSOR SETUP
If this is your first time using iMonnit, you must create a new account. If you have already created an account, start by
logging in. For instructions on how to register and set up your iMonnit account, please consult the iMonnit user guide.
STEP 1: ADD DEVICE
1. Add the sensor to iMonnit.
Add the sensor to your account by choosing Sensors in the main menu. Navigate to the Add Sensor button.
2. Find the device ID.
The Device ID (ID) and Security Code (SC) are necessary to add a sensor. These can both be located on the
barcode label on the side of your device.
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PAGE 3
3. Adding your device.
First, select the network from the drop-down Assigning to menu to
add your device. If you have not yet created a network, please see the
iMonnit user guide for instructions about how to create a network. You
need a working gateway assigned to the selected network to use your
sensor.
Enter the Device ID and the Security Code from your sensor in the
corresponding text boxes. Use the camera on your smartphone to
scan the QR code on the sensor. If you don't have a phone camera, or
the system is not accepting the QR code, enter the Device ID and
Security Code manually.
- The Device ID is a unique number located on the barcode label of
each sensor.
- Next, enter the Security Code from the sensor. A Security Code
consists of letters and must be entered in upper case (no numbers).
It can also be found on the barcode label of the sensor.
When completed, select the Add Device button.
Select your use case.
To get up and running fast, your sensors often come with preset use
cases. They're not, however, preset use cases for the H2S Sensor. The
only option is to select Custom from the How will you use your
sensor? drop-down menu, meaning that the sensor will need to be
configured after the setup process is finished.
Once the setup process is complete you can configure your sensor.
Select Sensors from the left-hand main navigation menu in iMonnit and
select the Network of the sensor to access the Sensor Overview page.
From the Sensor Overview page, select the Settings View icon ( )
from the menu and configure the H2S Sensor as you reference the
configuration explanations on the Settings View page below.
Select the Save button when completed.
STEP 2: SETUP
STEP 3: VALIDATION
Check your signal.
The validation checklist helps you ensure your sensor is communicating
with the gateway properly and that you have a strong signal. The first
two checkpoints verify the existence of the working gateway assigned
to the same network as the sensor you are setting up.
You should only click on Checkpoint 3 when you power on the sensor
by inserting the batteries.
Checkpoint 4 will only complete when your sensor achieves a solid
connection to the gateway. Once the sensor has been powered on, the
sensor communicates with the gateway every 30 seconds for the first
few minutes to establish the connection.
Select the Continue button when completed.

PAGE 4
STEP 4: ACTIONS
Choose your actions.
Actions are the alerts that will be sent to your phone or email in the
event of an emergency. Low battery life and device inactivity are two
of the most common Actions to have enabled on your device. See
page 10 for how to set Actions for your sensor.
Select the Done button when completed.
IV. BATTERIES AND INSTALLATION
INSTALLING/REPLACING BATTERIES
Commercial AA Sensors
Two replaceable alkaline 1.5V AA-sized batteries (included with purchase)
power the standard or commercial version of this sensor. The typical battery life
is up to 10 years.
This sensor is also available with a line-power option. The line-powered version
has a barrel power connector, allowing it to be powered by a standard 3.0?3.6V
power supply. The line-powered version also uses two standard 1.5V AA
batteries as backup for uninterrupted operation in the event of a line-power
outage.
Power options must be selected at the time of purchase, as the internal
hardware of the sensor must be changed to support the selected power
requirements.
Installing batteries in a new sensor: Place batteries in the sensor by first
rotating the top lid open (only one lid screw will be partially inserted on new
sensors allowing lid rotation). Insert fresh AA batteries in the battery holder, then
rotate the top lid closed.
Replacing batteries: Remove top lid screws, open top lid, remove old batteries,
wait a full 30 seconds, then insert fresh AA batteries in the battery holder.
After installing batteries, verify the sensor checks into iMonnit with a full battery
level, then insert all of the top lid screws until fully seated. Only tighten until
screw is fully seated, do not overtighten.
WARNING: When replacing the batteries in AA commercial sensors and
meters, ONLY install new batteries from the same manufacturer.
WARNING: When installing the batteries be extremely careful to not touch the
sensor element face as this may damage the element or effect the accuracy.

SENSOR PLACEMENT
Place each ALTA®Sensor within 1,200 feet of the gateway. The sensor should be placed to avoid transmissions through
metal, or concrete, and should be further re-positioned to avoid such obstacles if radio communication is spotty. We
recommend placing Monnit devices at least 3 feet (1 meter) away from other Monnit devices for best performance.
Except for ALTA-ISX®Sensors under the specific conditions for which they are approved, ALTA Sensors should NOT be
placed where they can be exposed to volatile or flammable gas. An ALTA Sensor should be deployed where it will be
protected from environmental conditions outside those disclosed in the sensor's data sheet.
PAGE 5
MOUNTING THE SENSOR
We recommend mounting the sensor vertically on a wall or
bulkhead with the antenna pointing up and the bottom vent
holes facing down. Mounting it this way will reduce the
likelihood that the internal sensing element will become
contaminated by dust or foreign objects and improve
measurement stability over the life of the sensor.
The sensor's feature mounting flanges can be attached to
most surfaces using the included mounting screws or
double-sided tape. For a wooden surface, a metallic surface,
or dry-wall, the included double-sided tape (one piece of tape
for coin-cell, two pieces otherwise) or the two included
screws may be used. For masonry, use the included
double-sided tape. If the included screws aren't available, use
two #7, 7/16?(0.4375?) screws. If the included double-sided
tape is not available, use one or more pre-cut, double-sided
foam squares of dimensions 1/32?x 3/4" x 3/4" available from
ULINE as model number S-11695, or the like.
ANTENNA ORIENTATION
Get the best performance out of ALTA Wireless Sensors by
properly positioning antennas. Point sensor and gateway
antennas in the same direction, vertically from the device. If
the sensor is mounted flat on a horizontal surface, bend the
antenna as close to the sensor housing as possible, with
most of the antenna pointing vertically. Make the antenna
wire as straight as possible, avoiding any kinks and curving
of the wire.
CLEANING
When needed, clean the sensor with a damp, but not
dripping-wet, cloth where the sensor is installed. Do not use
any cleaners or chemicals on or in very close proximity to
this sensor.
More Signal
Less Signal
INITIAL SETUP
ADVISORY: We recommend zeroing the sensor when it is first deployed and approximately every three
months for best performance.

PAGE 6
Details View
The Details View will be the first page you see upon selecting which
sensor you would like to modify or review.
A. The Sensor Overview section will be above every page. This will
consistently display the present reading, signal strength, battery
level, and status.
B. The Recent Readings section below the chart shows the most
recent data received from the sensor.
C. The Readings Chart shows how the sensor's readings fluctuate
throughout a set date range. To change the date range displayed in
the graph, navigate up to the top of the Readings Chart section on
the right-hand corner to change the From date and To date.
V. SENSOR OVERVIEW IN iMONNIT
A. Details - Displays a graph of recent sensor data
B. Readings - List of all past Heartbeats and readings
C. Actions - List of all Actions attached to the sensor
D. Settings - Configurable levels for a sensor
E. Calibrate - Sets the sensor to read more accurately
F. Scale - Changes the units for the sensor readings
Select Sensors from the main navigation menu in iMonnit to access the Sensor Overview page and begin to configure
the settings of the ALTA Hydrogen Sulfide Sensor.
MENU SYSTEM
A B C D E F
Directly under the top horizontal tabbed menu bar is an overview of the sensor. You can see the signal strength and the
battery level of the selected sensor. A colored dot in the left corner of the sensor icon denotes its status.
- Green indicates the sensor is checking in and is within user-defined safe parameters.
- Red indicates the sensor has met or exceeded a user-defined threshold or triggered event.
- Gray indicates that no sensor readings are being recorded, rendering the sensor inactive.
- Yellow indicates that the sensor reading is outdated, due to perhaps a missed Heartbeat check-in.
A
B
C

Readings View
Select the Readings Tab within the tab bar to view the devices
data history as time stamped data.
- On the far right of the Sensor History Data is a cloud
icon( ). Selecting this icon will export a .csv file
containing sensor data.
Exported Data
The exported .csv file will have the following columns of data:
MessageID: Unique identifier of the message in our database.
Sensor ID: If multiple sensors are exported, you can distinguish between them using this number, even if the names are
the same.
Sensor Name: The name you gave the sensor.
Date: The date the message was transmitted from the sensor.
Value: Primary data value presented with transformations applied, but without labels.
Formatted Value: Data transformed and presented as shown in iMonnit.
Battery: Estimated life remaining of the battery, reported as a percentage.
Raw Data: Raw data as it is stored from the sensor.
Sensor State: Binary field represented as an integer containing information about the state of the sensor when the
message was transmitted. (See Sensor State explained below.)
Gateway ID: ID of the gateway that connects the sensor to the Internet
Alert Sent: Boolean indicating if this reading triggered a notification to be sent from iMonnit.
Signal Strength: Strength of communication signal between the sensor and the gateway, shown as percentage value.
Voltage: Actual voltage measured at the sensor battery used to calculate battery percentage, similar to Received Signal
you can use one or the other or both if they help you.
PAGE 7
Note: Make sure you have the date range for
the data you need input in the From and To
text boxes. This will be the previous day by
default. Only the first 2,500 entries in the
selected date range can be exported.
Sensor State
The value presented here is generated from a single byte of stored data.
A byte consists of eight bits of data that we read as Boolean (True (1) / False (0)) fields.
When broken into individual bits, the State byte contains the following information: aaaabcde
STS: This value is specific to the sensor profile and is often used to indicate error states and other sensor conditions.
UNUSED: This sensor does not use these bits.
AWARE: Sensors become aware when critical sensor specific conditions are met. Going aware can cause the sensor to
trigger and report before the Heartbeat, causing the gateway to forward the data to the server immediately or nearly
immediately.
TEST: This bit is active when the sensor is first powered on or reset and remains active for the first nine messages when
using default configurations.
STS Specific Codes:
0 = No problems sensor is functioning normally, 5 = Calibration failed due to unstable readings, 6 = Duplicate calibration
command was sent multiple times by the system and was rejected, 7 = Calibration failed, 8 = Calibration passed,
12 = Reading exceeded 50 ppm limit, 13 = Temperature range exceeded, 14 = Hardware error, 15 = Sensor initializing
because it was just powered on or reset.

Actions View
In this view, you can pause triggering notifications and add/remove the sensor as a
trigger for existing Actions. For information on creating/editing Actions go to the Actions
Overview section of this user guide.
A. Sensor Name is a unique name you give the
sensor to easily identify it in a list and in any
notifications.
B. The Heartbeat Interval is how often, in minutes,
the sensor communicates with the gateway if the
sensor is not in an Aware State.
C. Aware State Heartbeat is how often, in minutes,
the sensor communicates with the gateway while in
an Aware State.
D. Above is the maximum reading the sensor
should record before entering an Aware State.
E. The Aware State Buffer prevents the sensor
from bouncing between Standard Operation and
Aware State when the assessments are very close
to the Above threshold. For example, when the
Aware State Buffer is 5 ppm and the Above
threshold is 50 ppm, once the sensor takes an
assessment of 50 ppm it will remain in an Aware
State until taking an assessment below 45 ppm.
F. Synchronize causes the sensors in a network to
synchronize their communications. The default
setting "off" allows the sensors to randomize their
communications, thereby maximizing
communication robustness.
G. Failed Transmissions Before Link Mode is the number of transmissions the sensor sends without a response from a
gateway before it goes to battery saving link mode. In link mode, the sensor will scan for a new gateway, and if not found
will enter battery-saving sleep mode for up to 60 minutes before trying to scan again. A lower number will make the
sensor enter link mode more quickly upon transmission failure. Higher numbers will better enable the sensor to remain
with its current gateway in a noisy RF environment. Zero will cause the sensor to never join another gateway. To find a
new gateway, the battery will have to be cycled out of the sensor.
H. Once all configuration changes have been accepted by the sensor, to restore the settings to their default values, press
the Default button in the lower right-hand side of the screen
D
E
F
G
H
Settings View
To edit the operational settings for the sensor, choose the Sensor option in the main navigation menu, then select the
Settings tab to access the configuration page.
A
B
C
PAGE 8

Scale View
In this view, you can set the units for temperature to
Fahrenheit or Celsius.
Calibration View
In this view, you can Calibrate Temperature, Zero H2S, and
set default values for the sensor. Follow the instructions on
the page to calibrate.
Clicking the Calibrate button after entering selecting the
appropriate calibration type and entering appropriate
information into the page will send a calibration command
from the sensor through the gateway.
Clicking the Default button will reset specific calibration
configurations to default values.
Create Calibration Certificate is described further below.
ADVISORY: Setting Default in the Calibrate view
will un-calibrate the sensor, after which the sensor
may not read within specified accuracy. Only set
Default per guidance provided by Monnit Support.
Creating a sensor calibration certificate will mask the Calibration
tab from those who should not have permissions to adjust these
settings. Permissions for self-certifying a calibration must be
enabled in user permissions.
A. The Calibration Facility Field will be filled. Select the
drop-down menu to change your facility.
B. The Certificate Valid Until field must be set one day in the
future after the date contained in the Date Certified field.
C. Calibration Number and Calibration Type are unique
values to your certificate.
D. If necessary, you can reset the Heartbeat Interval here to 10
minutes, 60 minutes, or 120 minutes. By default, this will be set
to no change.
E. Choose the Save button before moving on.
Creating a Calibration Certificate
D
E
A
B
C
ADVISORY: We recommend zeroing the sensor
once every three months for best performance.
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PAGE 10
VI. ACTIONS OVERVIEW
Actions are triggers or alarms set to notify you when a sensor identifies that immediate attention is needed. Types of
Actions include sensor readings, battery level, device inactivity, scheduled data, and numerous advanced types. Any one
of these can be set to send a notification or trigger an Action in the system.
Device notifications can be created, deleted, and edited starting in the
Actions menu (not to be confused with the Actions view on the sensor)
found in the left Overview pane or by clicking the menu button in the
upper left corner of the screen.
Within the Actions menu, you will see a filterable list of existing Actions
and an Add Action button.
ACTIONS MENU
Note: If this is your first time adding an Action, the list of
Actions will be blank.
From the Actions page, tap Add Action in the upper right-hand corner. On smaller screens or windows it may also
appear as a blue dot in the lower right corner of the screen.
- Sensor Reading: Set Actions based on an activity or reading.
- Battery Level: Set Actions based on battery level.
-
- Device Inactivity: Set Actions when the device doesn?t communicate for an
extended period of time.
- Advanced: Set Actions based on advanced rules, such as comparing past
data points with current ones.
- Scheduled: These Actions are performed at a set time basis.
The drop-down menu will have the following options for Action Types:
Step 1: What triggers your Action?
CREATING A NEW ACTION
- Select Sensor Reading from the drop-down menu.
- A second drop-down menu will appear. From here, you will be able to see a list of the different type of sensors
registered to your account. Choose H2S Gas in the drop-down menu.
- Choose whether you wish to trigger a notification on the basis of an instantaneous ppm reading, a TWA ppm
reading, or a temperature reading and whether that trigger occurs when the reading is greater than, equal to, or less
than the threshold amount to be put in the final field. You also need to define the threshold ppm or temperature.
Press the Save button.

PAGE 11
Step 2: Actions
C
A. Input the subject for the notification.
B. Customize the message body of email notification.
C. Customize message body of an SMS text notification.
D. Customize the message body of a voice notification.
E. Snooze timer for Action.
F. Jointly snoozes alerts from all sensors that can
trigger the Action after a single sensor causes an
alert to fire. Independently, will only snooze alerts for
the specific sensor that triggered the Action allowing
the other sensor to continue to alert independently.
G.Auto automatically stops alerts from being sent
after the triggering condition returns to normal.
Manual will continue to send alerts after the
snooze time until the alert is manually acknowledged
in iMonnit.
H.Recipient list identifies who will receive the
notification.
- Select the icon next to a user to specify how
they will be notified.
- Choose if you want notifications sent
immediately, when triggered, or if you want a
delay before sending and press Set.
- A green icon indicates that the users will
receive the notifications and what type of
notifications will be received.
- If a delay has been selected, the delay time will
display beside the icon.
Select Send Notification from the Select Actions list. A
B
D
E
Press the Save button.
F
G
H

PAGE 12
- By default, the sensor(s) will not be assigned to the Action conditions
you?ve just set. To assign a sensor, find the device(s) you want to
designate for this Action and select. Selected sensor boxes will turn
green when activated. Choose the sensor box again to unassign the
sensor from the Action.
- Continue toggling the sensor(s) corresponding to this new Action until
you are satisfied with your selection. These can be adjusted later by
returning to this page.
Step 3: Action Name and Devices
Press the Save button to complete the process.
Select System Action from the Select Actions list.
- Scroll down to the System Action section.
- The Action to be done select list has the following
options:
Acknowledge: Automatically signals that you have been
notified of an Action. When an Action has been triggered,
alerts will continue processing until the Action returns to a
value that no longer triggers an Action.
Full Reset: Reset your trigger so it is armed for the next
reading.
Activate: Enable an Action trigger.
Deactivate: Disable an Action trigger.
Press the Add button.
Press the Continue button in the upper right portion of the screen.

PAGE 13
Symptoms Detailed Problem
Description Solution
Not Checking into
iMonnit
The sensor lost the radio
link to the gateway or
never connected to the
gateway.
1.Ensure the network is set up correctly in iMonnit (sensor and
gateway are on the same network). Press the utility button on
the gateway to pick up the latest network configurations.
2.If the network is set up correctly, reform the gateway.
3.Move the sensor ~10 feet from the gateway and power cycle the
sensor by removing the batteries for 60 seconds then replacing
them to restore power.
4.Move the sensor progressively further from the gateway
ensuring at least two signal bars are showing. Keep in mind the
signal bars represent the signal from the previous message, not
the current message. We recommend taking two readings to
verify signal strength.
5.Check the antenna position on the gateway.
Low Signal The radio signal strength
in iMonnit is lower than
expected.
1.Ensure the gateway antenna is properly connected.
2.Ensure the gateway antenna is optimally oriented with respect to
the position of the sensor. (See Antenna Orientation guide in the
Setup and Installation section).
Any Calibration
Failure Message
In the Readings View
any "CALIBRATION
FAILED" message
appears.
STS value is 5 or 7
1.Attempt the calibration again.
2.If problem persists, contact support.
"GAS OVERANGE
ERROR" Appears in
Readings
In the Readings View
"GAS OVERANGE
ERROR" message
appears.
STS value is 12
1.The sensor is or has been exposed to gas above 50 ppm.
Assume the environment is filled with H2S and proceed with
extreme caution.
2.If this message persists after the environment has been cleared
contact Monnit Support for additional information on resolution.
"TEMPERATURE
RANGE EXCEEDED"
Appears in Readings
In the Readings View
"TEMPERATURE
RANGE EXCEEDED"
message appears.
STS value is 13
1.This can only occur if the sensor measures a temperature lower
than -40 C or above 125 C. If the temperature conditions are not
actually outside this range, contact Monnit Support. This will
most likely require an RMA to physically repair the sensor.
"HARDWARE
ERROR" Appears in
Readings
In the Readings View
"HARDWARE ERROR"
message appears.
STS value is 14
1.This message may appear momentarily when the sensor is first
powered on but should go away in a few minutes.
2.If the message does not go away, contact Monnit Support. To
address this problem, it will most likely require an RMA repair.
VII.TROUBLESHOOTING

Symptoms Detailed Problem
Description Solution
"SENSOR
INITIALIZING"
Appears in Readings
In the Readings View
"SENSOR
INITIALIZING" message
appears.
STS value is 15
This message appears when the sensor first powers on or resets.
It should go away within 2 minutes. This is a normal message.
Unexpected H2S TWA
Readings The H2S TWA readings are other than expected.
After powering on, resetting or zeroing the TWA value resets to 0
and assumes the previous 8 hours of readings was 0 ppm. As this
8 hours of data is filled in, the TWA will progress towards the
steady Instantaneous H2S reading. These are all normal behaviors
for this sensor. For other readings that can effect TWA, see
Unexpected Instantaneous Readings below.
Unexpected
Instantaneous H2S
Readings
The Instantaneous H2S
readings are other than
expected.
The H2S reading can be affected by several different
environmental factors, here are a few to consider:
1.Fast changes in pressure, temperature, or humidity. Once the
environment stabilizes the readings should also stabilize.
2.Other gases the element may be sensitive to are present in the
environment. See the Cross Sensitivity table in the data sheet
for some examples.
3.Directly breathing on the sensing element or into the sensor can
cause readings to increase due to sudden increases in humidity
but also because the sensor can detect bad breath (halitosis).
4.Moisture or dust forming or settling on the sensing element.
Contaminants can affect the readings in unpredictable ways, be
sure to follow the mounting and placement guides for best
performance. If operating in extremely dusty/dirty environments
consider a non H2S reactive dust cover that will still allow gases
to flow freely through it.
PAGE 14

ALTA Gateways are designed to prevent prying eyes from
accessing the data that is stored on the sensors and the
gateway. Gateways do not run on an off-the-shelf, multi-function operating system. Instead, they run on a
purpose-specific, real-time, and embedded state machine that cannot be hacked to run malicious processes. There are
also no active interface listeners that can be used to gain access to the device over the network. Our fortified gateways
secure your data from attackers and secures the gateway from becoming a relay for malicious programs.
Click here for more information on gateway security.
The ALTA Site Survey Tool is designed and built to securely manage data. Monnit works to ensure your data security is
handled with the utmost care. The same methods used by financial institutions to transmit data are also used in Monnit's
security infrastructure. Security features from sensors to gateways include tamper-proof network interfaces, data
encryption, and bank-grade security.
Monnit?s proprietary sensor protocol uses low power and specialized radio equipment to transmit application data.
Wireless devices listening on open communication protocols cannot eavesdrop on sensors or the Site Survey Tool.
Packet-level encryption and verification is key to ensuring data traffic isn?t altered between ALTA devices. Paired with a
best-in-class range and power consumption protocol, all data is transmitted securely from your devices, ensuring a
smooth, worry-free experience.
Monnit's sensor-to-gateway, secure wireless tunnel,
Encrypt-RF?, is generated using ECDH-256 (Elliptic Curve
Diffie-Hellman) public key exchange to generate a unique
symmetric key between each pair of devices. Sensors,
gateways, and the tool use this link-specific key to process
packet-level data with hardware-accelerated 128-bit AES
encryption, which minimizes power consumption to provide
better battery life. Thanks to this combination, Monnit proudly
offers robust bank-grade security at every level.
The iMonnit system is the online software and central hub for configuring your device settings. All data is secured on
dedicated servers operating Microsoft SQL Server. Access is granted through the iMonnit user interface that requires
Two-Factor Authentication (2FA), or an Application Programming Interface (API) safeguarded by 256-bit Transport Layer
Security (TLS 1.2) encryption. TLS is a blanket of protection to encrypt all data exchanged between iMonnit and you.
The same encryption is available to you whether you are an iMonnit Basic or Premiere user. You can rest assured that
your data is safe with iMonnit.
PAGE 15
OPTIONAL DATA AUTHENTICATION
SensorPrintsTM is the industry's only end-to-end Internet of Things (IoT) data authentication platform for low-power
wireless sensors. SensorPrints authenticates data by issuing a unique fingerprint for each device within the IoT. Data is
secured from the point of generation to the point of consumption. Easy to install and use, SensorPrints is the definitive
IoT security solution for any enterprise.
SensorPrints authenticates data at both the point of generation and consumption, creating trust between the sensor and
server levels. Implementing 256-bit SHA 3 authentication, SensorPrints creates a "fingerprint" for an ALTA Wireless
Sensor that contains an authenticated sensor message. When data is transmitted from the sensor, it is accompanied by
a generated authentication token. Upon receipt by the application, the token is evaluated via cryptographic hash function
against a unique per sensor secret key. This step provides an unprecedented level of full-coverage security for any
Monnit user wishing to secure their IoT devices and data.
Click here for more information on SensorPrints.
VIII. MONNIT DATA SECURITY
iMONNIT SECURITY
SENSOR COMMUNICATION SECURITY
DATA SECURITY ON THE GATEWAY

PAGE 16
IX. CERTIFICATIONS
United States FCC
This equipment has been tested and found to comply with the limits for a Class B digital devices, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one of more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
WARNING: Changes or modifications not expressly approved by Monnit
could void the user?s authority to operate the equipment.
RF Exposure
WARNING: To satisfy FCC RF exposure requirements for mobile
transmitting devices, the antenna used for this transmitter must not be
co-located in conjunction with any antenna or transmitter.
Monnit and ALTA Wireless Sensors:
This equipment complies with the radiation exposure limits prescribed for an uncontrolled environment for fixed and
mobile use conditions. This equipment should be installed and operated with a minimum distance of 23 cm between the
radiator and the body of the user or nearby persons.
All ALTA Wireless Sensors Contain FCC ID: ZTL-G2SC1. Approved
Antennas
ALTA devices have been designed to operate with an approved antenna listed below, and having a maximum gain of 14
dBi. Antennas having a gain greater than 14 dBi are strictly prohibited for use with this device. The required antenna
impedance is 50 ohms.
- Xianzi XQZ-900E (5 dBi Dipole Omnidirectional)
- HyperLink HG908U-PRO (8 dBi Fiberglass Omnidirectional)
- HyperLink HG8909P (9 dBd Flat Panel Antenna)
- HyperLink HG914YE-NF (14 dBd Yagi)
- Specialized Manufacturing MC-ANT-20/4.0C (1 dBi 4?whip)
Canada (IC)
English
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or
lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the
antenna type and its gain should be so chosen that the Equivalent Isotropically Radiated Power (E.I.R.P.) is not more
than that necessary for successful communication.
The radio transmitters (IC: 9794A-RFSC1, IC: 9794A-G2SC1, IC: 4160a-CNN0301, IC: 5131A-CE910DUAL, IC:
5131A-HE910NA, IC: 5131A-GE910 and IC: 8595A2AGQN4NNN) have been approved by Industry Canada to operate
with the antenna types listed on previous page with the maximum permissible gain and required antenna impedance for
each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain
indicated for that type, are strictly prohibited for use with this device.
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two
conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device.

PAGE 17
French
Conformément à la réglementation d?Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne
d?un type et d?un gain maximal (ou inférieur) approuvé pour l?émetteur par Industrie Canada. Dans le but de réduire les
risques de brouillage radioélectrique à l?intention des autres utilisateurs, il faut choisir le type d?antenne et son gain de
sorte que la Puissance Isotrope Rayonnée Èquivalente (P.I.R.È) ne dépasse pas l?intensité nécessaire à l?établissement
d?une communication satisfaisante.
Le présent émetteurs radio (IC: 9794A-RFSC1, IC: 9794A-G2SC1, IC: 4160a-CNN0301, IC: 5131A-CE910DUAL, IC:
5131A-HE910NA, IC: 5131A-GE910 et IC: 8595A2AGQN4NNN) a été approuvé par Industrie Canada pour fonctionner
avec les types d?antenne figurant sur la page précédente et ayant un gain admissible maximal et l?impédance requise
pour chaque type d?antenne. Les types d?antenne non inclus dans cette liste, ou dont le gain est supérieur au gain
maximal indiqué, sont strictement interdits pour l?exploitation de l?émetteur.
Le présent appareil est conforme aux CNR d?Industrie Canada applicables aux appareils radio exempts de licence.
L?exploitation est autorisée aux deux conditions suivantes : (1) l?appareil ne doit pas produire de brouillage, et (2)
l?utilisateur de l?appareil doit accepter tout brouillage radioélectrique subi, méme si le brouillage est susceptible d?en
compromettre le fonctionnement.
UK / CE
There is no restriction for the commercialization of Monnit ALTA 868MHz and 433MHz wireless products in all the
countries of the European Union. The European Community provides specific directives for the electronic equipment
introduced on the market. All the relevant information is available on the European Community websites.
ALTA wireless products comply with the specific harmonized standards, regulations, instruments, and directives listed in
the table below. For more information on product compliance, please contact Monnit Sales or Support and request a
copy of the manufactures Declaration of Confirmatory (DoC) for the relevant product(s).
Directive / Instrument / Regulation Part Harmonized Standard(s) /
Standard(s)
Low Voltage Directive (LVD) (2014/35/EC)
Electrical Equipment (Safety) Regulations 2016
(S.I. 2016/1101) All parts EN 61010-1:2010
IEC 61010-1:2010/ AMD1:2016
ElectroMagnetic Compatibility Directive (EMCD)
(2014/30/EU)
Electromagnetic Compatibility Regulations 2016
Emissions
Requirement EN 55032:2015/ A11:2020
Immunity
Requirement EN 55035:2017/ A11:2020
Radio Equipment Directive (RED) (2014/53/EU
Radio Equipment Regulations 2017 (S.I.
2017/1206)
Electrical Safety
Article 3.1(a) EN 61010-1:2010
IEC 61010-1:2010/ AMD1:2016
EMC Article 3.1(b) ETSI EN 301 489-3 V2.2.0
RF Spectrum
Efficiency Article ETSI EN 300 220 V3.2.1 (2018-06)
Internet of Things
Cybersecurity
Article 3.3(d)-(f)
EU 2022/30
ETSI EN 303 645 V2.1.1 (2020-06)
Restriction of Hazardous Substances
(2011/65/EU)
Restriction of the Use of Certain Hazardous
Substances in Electrical and Electronic
RoHS II and RoHS
III IEC 63000:2016/ AMD1:2022
Registration, Evaluation, and Authorization of
CHemicals (REACH) Regulation 1907/2006 Article 33 SVHC 224 (June 10, 2022)

PAGE 18
X. SUPPORT
For technical support and troubleshooting tips please visit our support library at monnit.com/support/. If you are unable to solve your
issue using our online support, email Monnit support at [email protected] with your contact information and a description of the
problem, and a support representative will call you within one business day.
For error reporting, please email a full description of the error to [email protected].
XI. WARRANTY INFORMATION
(a) Monnit warrants that Monnit-branded products (Products) will be free from defects in materials and workmanship for a period of one
(1) year from the date of delivery with respect to hardware and will materially conform to their published specifications for a period of
one (1) year with respect to software. Monnit may resell sensors manufactured by other entities and are subject to their individual
warranties; Monnit will not enhance or extend those warranties. Monnit does not warrant that the software or any portion thereof is
error-free. Monnit will have no warranty obligation with respect to Products subjected to abuse, misuse, negligence, or accident. If any
software or firmware incorporated in any Product fails to conform to the warranty set forth in this section, Monnit shall provide a bug fix
or software patch correcting such non-conformance within a reasonable period. This correction will be completed after Monnit receives
from the Customer (i) notice of such non-conformance, and (ii) sufficient information regarding such non-conformance so as to permit
Monnit to create such bug fix or software patch. If any hardware component of any Product fails to conform to the Warranty in this
section, Monnit shall, at its option, refund the purchase price less any discounts, or repair or replace nonconforming Products with
conforming Products or Products having substantially identical form, fit, and function and deliver the repaired or replacement Product to
a carrier for land shipment to customer within a reasonable period. This will take place after Monnit receives from the Customer (i)
notice of such non-conformance, and (ii) the non-conforming Product provided; however, if, in its opinion, Monnit cannot repair or
replace on commercially reasonable terms, it may choose to refund the purchase price. Repair parts and replacement Products may be
reconditioned or new. All replacement Products and parts become the property of Monnit. Repaired or replacement Products shall be
subject to the warranty, if any remains, originally applicable to the Product repaired or replaced. The Customer must obtain from Monnit
a Return Merchandise Authorization (RMA) number prior to returning any Products to Monnit. Products returned under this Warranty
must be unmodified.
The Customer may return all Products for repair or replacement due to defects in original materials and workmanship if Monnit is
notified within one year of customer?s receipt of the Product. Monnit reserves the right to repair or replace Products at its own and
complete discretion. Customer must obtain from Monnit a RMA number prior to returning any Products to Monnit.
Products returned under this Warranty must be unmodified and in original packaging. Monnit reserves the right to refuse warranty
repairs or replacements for any Products that are damaged or not in original form. For Products outside the 1-year warranty period,
repair services are available at Monnit at standard labor rates for a period of one year from the Customer?s original date of receipt.
(b) As a condition to Monnit?s obligations under the immediately preceding paragraphs, the Customer shall return Products to be
examined and replaced to Monnit?s facilities, in shipping cartons which clearly display a valid RMA number provided by Monnit.
Customer acknowledges that replacement Products may be repaired, refurbished, or tested and found to be complying. Please visit
Monnit.com/policy/returns/ for Monnit's return policy and instructions.
(c) Monnit?s sole obligation under the Warranty described or set forth here shall be to repair or replace non-conforming products as set
forth in the immediately preceding paragraph, or to refund the documented purchase price for non-conforming Products to the
Customer. Monnit?s Warranty obligations shall run solely to the Customer, and Monnit shall have no obligation to customers of the
Customer or other users of the Products. Limitation of Warranty and Remedies
THE WARRANTY SET FORTH HEREIN IS THE ONLY WARRANTY APPLICABLE TO PRODUCTS PURCHASED BY
CUSTOMER. ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY DISCLAIMED.
MONNIT?S LIABILITY WHETHER IN CONTRACT, IN TORT, UNDER ANY WARRANTY, IN NEGLIGENCE OR OTHERWISE
SHALL NOT EXCEED THE PURCHASE PRICE PAID BY CUSTOMER FOR THE PRODUCT. UNDER NO
CIRCUMSTANCES SHALL MONNIT BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES. THE PRICE
STATED FOR THE PRODUCTS IS A CONSIDERATION IN LIMITING MONNIT?S LIABILITY. NO ACTION, REGARDLESS OF
FORM, ARISING OUT OF THIS AGREEMENT MAY BE BROUGHT BY CUSTOMER MORE THAN ONE YEAR AFTER THE
CAUSE OF ACTION HAS ACCRUED.
IN ADDITION TO THE WARRANTIES DISCLAIMED ABOVE, MONNIT SPECIFICALLY DISCLAIMS ANY AND ALL
LIABILITY AND WARRANTIES, IMPLIED OR EXPRESSED, FOR USES REQUIRING FAIL-SAFE PERFORMANCE IN
WHICH FAILURE OF A PRODUCT COULD LEAD TO DEATH, SERIOUS PERSONAL INJURY, OR SEVERE PHYSICAL OR
ENVIRONMENTAL DAMAGE SUCH AS, BUT NOT LIMITED TO, LIFE SUPPORT OR MEDICAL DEVICES OR NUCLEAR
APPLICATIONS. PRODUCTS ARE NOT DESIGNED FOR AND SHOULD NOT BE USED IN ANY OF THESE
APPLICATIONS.