EasyLog EL-IOT-CO2 User manual

Temperature
The EL-IOT-CO2 continuously monitors air quality and comfort levels,
including CO2, a key indicator of adequate ventilation. It automatically
uploads data to the EasyLog Cloud, allowing your complete set of
data measurements to be viewed, analysed and downloaded from
any internet-enabled device.
It takes only a few minutes to set up your
EL-IOT-CO2, and you can configure your own
high and low alarms for each measured
parameter. If one of your set levels is
breached an instant alarm is activated
on the device, and notification options
include email and SMS messages to
your chosen contacts.
The display shows current, maximum
and minimum readings for carbon dioxide,
temperature and humidity, as well as alarm and
device status.
The EL-IOT-CO2 runs from a USB power supply
(supplied with the product) and can use AA batteries
to provide a short-term backup if the power supply
is interrupted. It is also provided with a wall
mountable bracket for easy installation.
www.lascarelectronics.com
Issue 1 06/2022
• Monitor the air quality in homes, schools and oces
• Measures:
Carbon dioxide (CO2)
Temperature
Humidity
• Automatically uploads data to the EasyLog Cloud
• Display shows current, maximum and minimum
readings
• Status indicators and sounder
• Set up instant alarms and notifications
• Readings are recorded even if the WiFi signal is lost
Humidity
Continuously
monitors air
quality
EL-IOT-CO2
Carbon Dioxide WiFi Cloud-Connected Data Logger
Your data, anytime, anywhere
Carbon Dioxide

EasyLog Cloud App
Available for Android and
Apple devices, the EasyLog
Cloud app enables you to
monitor and manage your
wireless sensors on the go.
Access your vital data from any internet-enabled
computer, tablet or mobile device with EasyLog
Cloud. From single locations to worldwide
operations, the system is perfectly scalable and can
run through your existing wireless networks.
Critical events are notified to specific users in seconds via an
alarm system that’s easily tailored to your exact requirements.
Data is accessible 24/7 and powerful online tools make it
simpler than ever to view, compare and analyse readings. An
audit trail is automatically created that includes both system
and data events.
Starter and Professional accounts are available, always flexible
and with no locked-in contracts.
If you choose not to connect your EL-IOT-CO2 to the Cloud, it
will still measure and display readings, but will not record data
and you won’t be able to use any of the additional features of
the EasyLog Cloud, including email and SMS notifications.
EasyLog Cloud
Secure Cloud storage
Connect data loggers from
multiple sites in one account
Automatic emails alerts
and SMS
Graph, review and analyse
your data
Configurable user profiles
Easily access your most
important data, anywhere
Audits are easy with our
event log system
Remotely manage all of
your data logger devices
Your Data: Anytime.Anywhere.
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Issue 1 06/2022
EL-IOT-CO2
Carbon Dioxide WiFi Cloud-Connected Data Logger
Your data, anytime, anywhere

www.lascarelectronics.com
Issue 1 06/2022
EL-IOT-CO2
Carbon Dioxide WiFi Cloud-Connected Data Logger
Your data, anytime, anywhere
DISPLAY STATUS INDICATION
• On startup, the LCD runs through a test sequence in which all elements are acvated, the alarm LEDs light up and the sounder beeps.
• The CO2 sensor may take a few minutes to self-calibrate aer startup, before readings are given. During this me keep in fresh air.
The high-contrast LCD shows current,
maximum and minimum readings, as
well as alarm and logger status:
Baery level
Minimum Reading
Maximum Reading
Calibraon reminder
WiFi signal strength
Warning nocaon
CO2alarm status
Temperature alarm status
Temperature reading
Temperature units
CO2 reading
CO2units
Humidity alarm status
Humidity reading
Humidity units
Display Logger Status Explanation
Startup
The logger is starting
up, the number
displayed is the
rmware version
Not congured
The logger has not
yet been connected
to the EasyLog Cloud,
readings will be
displayed but not
uploaded
Setup Mode
The device is in setup
mode, ready to connect
to the EasyLog Cloud
Connected to App
The device has
connected to the
EasyLog App as part
of the setup process
Setup Fail
The device has been
unable to complete the
setup process, check
the availability of
your WiFi network
and try again
Firmware Update
The device is loading
new rmware (you can
check for updates on
the EasyLog Cloud)
Display Logger Status Explanation
Update Failed
The device has failed
to load new rmware
and will automatically
revert to the previous
version
CO2Calibration
Due
You should activate
the CO2Fresh Air
Calibration process
CO2Fresh Air
Calibration
The device is
recalibrating the CO2
sensor, leave it exposed
to fresh air during this
process
CO2Calibration
Failed
The device was unable
to calibrate the CO2
sensor, you should
expose it to fresh air
and try again
Device warning
Press MIN/MAX to
cycle through readings
screens to see warning
screens
Alarm light and mute buon

www.lascarelectronics.com
Issue 1 06/2022
EL-IOT-CO2
Carbon Dioxide WiFi Cloud-Connected Data Logger
Your data, anytime, anywhere
BUTTON FUNCTIONS
Button Press Function
TOP BUTTON -
Mute alarm sounder (it will
re-activate when a new
alarm is activated)
Short Press
Cycle between current,
minimum and maximum
readings, and any warning
screens
Long Press
Reset the maximum and
minimum values for all
parameters
Short Press
Create an audit mark in the
data record and initiate
data synchronisation with
the Cloud
Long Press Enter Setup mode
Short Press
Reset all active alarms
(they will immediately
re-trigger if an alarm
threshold is breached)
Long Press Enter CO2Fresh Air
Calibration mode
1
3
Connect the power
supply and the device
will turn itself on.
You can now view the EL-IOT-CO2’s data
and change settings either in the EasyLog
Cloud App or by visiting your account at:
www.easylogcloud.com
CONNECTING TO THE CLOUD
2
Download and login to
the EasyLog Cloud App
on your mobile device.
Select “Setup Device”
and follow the on-
screen instructions to
add your EL-IOT-CO2.
MIN / MAX
CLEAR M/M
AUDIT
CONFIG
RESET ALARM
CALIBRATION

www.lascarelectronics.com
Issue 1 06/2022
EL-IOT-CO2
Carbon Dioxide WiFi Cloud-Connected Data Logger
Your data, anytime, anywhere
SPECIFICATIONS
CO2Measurement
Range 0 to 40,000ppm
Accuracy at 400ppm ±10.5%
Resolution 1ppm
Auto-calibration Yes
Units ppm
Temperature Measurement
Range -20 to +60°C (-4 to +140°F)
Accuracy ±0.3°C (±0.54°F) typical
Resolution 0.1°
Units °C or °F
Relative Humidity Measurement
Range 0 to 100%RH
Accuracy ±2% typical
Resolution 0.1%
Dew Point Accuracy* 1.5°C typical (40 to 100%RH)
Data Logging Rate 10 seconds to 12 hours
(user selectable)
Transmission Interval 1 minute to 24 hours
(user selectable)
Internal Memory 300,000 readings
Dimensions 97 x 87 x 33mm
Operating Temperature
Battery Power -18 to +55°C (0 to +131°F)
USB Power -20 to +60°C (-4 to +140°F)
Environmental Rating IP4X
CO2FRESH AIR CALIBRATION
To maintain the accuracy of your EL-IOT-CO2, the CO2sensor
needs to recalibrate itself every 6 months. The warning icon
will acvate to remind you when it is me. Expose the device
to fresh air by placing it outside or next to a wide open
window. Press the CALIBRATE buon to start the process,
the display will show it is under way. Aer a few minutes the
process will nish and the display will resume showing the
current readings. If there is a problem with the calibraon
process, a warning screen will inform you. Ensure the supply
of fresh air is adequate and try again.
*Dew point measurements are only available via the EasyLog Cloud

1 Exposure to CO2 concentraons smaller than 400 ppm can aect the
accuracy of the sensor if the automac self-calibraon funcon is used.
2 Deviaon to a high-precision reference. Accuracy is fullled by >90% of the
sensors aer calibraon. Rough handling or shipping reduces the accuracy
of the sensor. Accuracy is restored with the automac recalibraon feature.
Accuracy is based on tests with gas mixtures having a tolerance of ±1.5%.
3 Time for achieving 63% of a respecve step funcon under test condions.
Response mes can depend on the operang environment in the
nal applicaon.
4 For proper automac calibraon the device has to be exposed to air with
CO2 concentraon 400 ppm regularly. Maximum accuracy dri per
year esmated from stress tests is ± (5 ppm + 2 % of reading). Higher
dri values may occur if the device is not handled according to
the instrucons.
www.lascarelectronics.com
Issue 1 06/2022
EL-IOT-CO2
Carbon Dioxide WiFi Cloud-Connected Data Logger
Your data, anytime, anywhere
OPERATING CONDITIONS
The performance of the humidity sensor can
be aected by long-term exposure to operang
condions at the extents of the logger’s range.
The sensor shows best performance when
operated within the recommended normal
temperature and humidity range of 5 to 55°C and
20 to 80%RH, respecvely. Long-term exposure to
condions outside the normal range, especially
at high humidity, may temporarily oset the RH
signal (e.g. +3%RH aer 60h kept at >80%RH).
Aer returning into the normal temperature and
humidity range the sensor will slowly come back
within the calibraon state by itself. Prolonged
exposure to extreme condions may also
accelerate ageing.
When tracking changes in ambient condions,
the response me of the humidity sensor in
your data logger is approximately 20 minutes to
reach 90% of the reading. However, if you are
measuring step changes in humidity (for example
if calibrang the product) it is advised that you
leave the unit for up to four hours to ensure that
it has enough me to sele at the new level.
It is worth remembering that the value of relave
humidity is of course sensive to temperature
variaon. As an example, at a relave humidity of
~90%RH at ambient temperature, a variaon in
temperature of 1°C will result in a change of up
to -5%RH. Therefore when comparing mulple
devices or calibrang them, any temperature
variaons must be considered.
The humidity measuring element in the humidity
data loggers can be contaminated through
exposure to a variety of compounds. These
products should not be kept in proximity to
volale chemicals such as solvents and other
organic compounds. Generally speaking, if a
material or compound emits a strong odour
you should not keep your humidity data logger
in close proximity to it. If you would like more
informaon, please contact your local Lascar
Electronics oce.
High levels of pollutants may cause permanent
damage to the internal sensor.
Typical tolerance of RH over Temperature:
SENSOR ACCURACY AND INFORMATION
Typical and maximal tolerance for the relave
humidity sensor at 25°C:
Typical and maximal tolerance
for the temperature sensor in °C:
Parameter Conditions Value
CO2measurement range1- 0 to 40,000 ppm
CO2measurement accuracy2400 to 2,000 ppm ±(50 ppm +5% of reading)
CO2measurement accuracy2400 to 5,000 ppm ±(40 ppm +5% of reading)
Repeatability Typical ±10 ppm
Response time3T63%, typical 60 s
Accuracy drift per year with
automatic self-calibration4Typical ±(5 ppm +0.5% of reading)
Default condions of 25°C, 50% RH and ambient pressure of 1013 mbar apply to values in the table below.
CO2SENSOR

ALSO IN THE RANGE
Vist lascarelectronics.com/data-loggers to see our
full range of data loggers and measuring devices
ACCESSORIES INCLUDED IN THE BOX
PSU
Power supply
3 x ADAPTORS CABLE
Power cable
EL-IOT
WALL BRACKET
Wall mounting bracket
with magnets
BAT 1V5 AA PK4
4 x AA 1.5V
alkaline batteries
EL-IOT-1
WiFi Ambient temperature
data logger
EL-WEM
WiFi Indoor Air Quality
Monitor
EL-WEM+
WiFi High Accuracy Indoor
Air Quality Monitor
EL-IOT-TC
WiFi thermocouple
temperature data logger
EL-IOT-TH+
WiFi High accuracy
temperature and humidity
data logger
EL-IOT-TH
WiFi temperature and
humidity data logger
www.lascarelectronics.com
Issue 1 06/2022
EL-IOT-CO2
Carbon Dioxide WiFi Cloud-Connected Data Logger
Your data, anytime, anywhere
Power Supply Voltage 9Vdc, 300mA
Operating Environment
(power supply) -20 to +60°C
5% to 85% RH,
75kPa to 106kPa
Operating Environment
(battery power) -18 to +55°C
Transportation and
Storage Environment -20 to +60°C
Net Weight 243g
Recommended Wall
Fixing Screws
3.5 x 20mm, countersunk head,
cross recessed, stainless steel
BATTERY INFORMATION
This device is designed to be powered using the
USB power supply provided. The logger does not
lose its stored data readings when the power
supply is disrupted. However, if the device has
been logging, the logging process will stop
and will not resume until the power supply is
restored, and the device has reconnected to the
WiFi network.
To provide a back-up source of power in case
the mains supply is lost, you can fit four AA
batteries and the product will automatically
switch to using them when needed. Use only
AA 1.5V alkaline batteries. We recommend you
replace the batteries annually. When the
EL-IOT-CO2 is in battery mode, fresh air
calibration is not possible.
CALIBRATION CERTIFICATES
Lascar oers a Traceable Calibration Certificate
Service for temperature and humidity sensors.
Using reference equipment which has been
calibrated by a UKAS/NIST accredited laboratory
and using apparatus traceable to national or
international standards. For more information
please see www.lascarelectronics.com.
TECHNICAL INFORMATION
EL-IOT
WALL BRACKET
Wall mounting bracket