IPVideo Corporation HALO 2.0 Use and care manual

Brought to you by:
1490 North Clinton Ave, Bay Shore NY 11706
www.ipvideocorp.com • [e-mail] • 631.969.2601
ADMINISTRATOR MANUAL
v2.8.2.3 | HALO 2.0, 2C, 3C and 3C-PC MODELS

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 2 •ADMINISTRATOR MANUAL •V2.8.2.3
About This Document, Legal Considerations, Liability, Intellectual Property Rights, & Equipment
Modification ........................................................................................................................................3
Trademark Acknowledgments & Regulatory Information: Electromagnetic Compatibility .................. 4
Safety Information .............................................................................................................................. 5
Electrical Safety .................................................................................................................................. 5
Laser Safety Notice ............................................................................................................................. 6
Battery, Disposal and Recycling .......................................................................................................... 7
Support .............................................................................................................................................. 7
Introduction ........................................................................................................................................ 8
Hardware Overview 2.0 / 2C / 3C ......................................................................................................... 9
Setup Prerequisites ........................................................................................................................... 14
Finding HALO Smart Sensors on a Network ....................................................................................... 14
First Time Setup ................................................................................................................................ 15
Connection to a HALO Smart Sensor / Dashboard .............................................................................. 19
Live Views ......................................................................................................................................... 20
Live View: Image Settings .................................................................................................................. 21
About / Device Info / Legal .................................................................................................................22
Device Settings / Management ..........................................................................................................23
Network (Ethernet,WiFi, HTTP / HTTPS, & Downstream PoE) / Certificates ........................................27
Cloud Registration ............................................................................................................................ 30
iPanic Button ..................................................................................................................................... 31
User Management .............................................................................................................................33
Events / Pause / UID / Hysteresis........................................................................................................ 34
Actions...............................................................................................................................................36
Wave Files ..........................................................................................................................................37
People Count .....................................................................................................................................38
LED Pattern....................................................................................................................................... 40
Notifications / Email .......................................................................................................................... 41
Integrations / External Messaging / Heartbeat / RTSP / Paths ............................................................ 43
BACnet, Protocol Implementation Conformance (PIC) Statement .................................................... 48
Image Settings.................................................................................................................................. 54
External Connections .........................................................................................................................55
Factory Reset .....................................................................................................................................59
Maintenance & Testing ..................................................................................................................... 60
End User License Agreement ............................................................................................................62

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [email protected]om | 631.969.2601
Page 3 •ADMINISTRATOR MANUAL •V2.8.2.3
ABOUT THIS DOCUMENT
This manual is intended for administrators and users of IPVideo HALO Smart Sensor, and is applicable to
hardware versions 2.0, 2C, 3C, and 3C-PC , HALO firmware version 2.8 and later. It includes instructions
for using and managing the product on your network. Previous experience of networking will be of use
when using this product. Some knowledge electrical circuitry and alarm panel connection may be useful
in certain types of installations. Later versions of this document will be posted at https://halodetect.com/
resources/manuals-guides/. See also the product’s online help, available through the web-based interface.
LEGAL CONSIDERATIONS
HALO Smart Sensors are NOT a LIFE SAFETY device. They do NOT replace LIFE SAFETY
devices such as carbon monoxide monitors or smoke detectors.
HALO Smart Sensors n’est pas un appareil LIFE SAFETY. Il ne remplace PAS les dispositifs
LIFE SAFETY tels que les moniteurs de monoxide de carbone ou les détecteurs de
fumée.
Environmental and behavioral monitoring can be regulated by laws that vary from country to country.
HALO has been designed to prohibit any direct monitoring or recording of video or audio, please check
your local laws to ensure compliance.
LIABILITY
Every care has been taken in the preparation of this document. Please inform your local IPVideo Corporation
office of any inaccuracies or omissions. IPVideo Corporation cannot be held responsible for any technical
or typographical errors and reserves the right to make changes to products and manuals without prior
notice. IPVideo Corporation makes no warranty of any kind with regard to the material contained within
this document including, but not limited to, warranties of merchantability and fitness for a particular
purpose. IPVideo Corporation shall not be liable nor responsible for incidental or consequential damages
in connection with the furnishing, performance, or use of this material. This product is only to be used for
its intended purpose.
INTELLECTUAL PROPERTY RIGHTS
IPVideo Corporation has intellectual property rights relating to technology embodied in the product
described in this document. In particular, and without limitation, these intellectual property rights may
include on one or more patents or pending patent applications in the US and other countries.
This product contains open source and licensed 3rd party software components.
The complete list of open source and licensed 3rd party software components can be found through the
Dashboard web page of HALO by navigating to: About > Legal > View Licenses.
EQUIPMENT MODIFICATION
This equipment must be installed and used in strict accordance with the instructions given in the user
documentation. This equipment contains no user-serviceable components. Unauthorized equipment
changes will invalidate all applicable regulatory certifications and approvals.
WARNING
ATTENTION

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [email protected]om | 631.969.2601
Page 4 •ADMINISTRATOR MANUAL •V2.8.2.3
TRADEMARK ACKNOWLEDGMENTS
IPVIDEO CORPORATION is a registered trademark. All other company names and products are trademarks
or registered trademarks of their respective companies.
Vista and WWW are registered trademarks of the respective holders. Java and all Java-based trademarks
and logos are trademarks or registered trademarks of Oracle and/or its affiliates. SD, SDHC and SDXC are
trademarks or registered trademarks of SD-3C, LLC in the United States, other countries or both. Also,
miniSD, microSD, miniSDHC, microSDHC, microSDXC are all trademarks or registered trademarks of SD-
3C, LLC in the United States, other countries or both.
REGULATORY INFORMATION:
ELECTROMAGNETIC COMPATIBILITY
This equipment has been designed and tested to fulfill applicable standards for:
• Radio frequency emission when installed according to the instructions and used in its intended
environment.
• Immunity to electrical and electromagnetic phenomena when installed according to the instructions
and used in its intended environment.
ANTENNA SPECIFICATIONS
USA
This equipment has been tested using a shielded network cable (STP)and found to comply with the limits
for a Class A digital device, 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 the radio frequency energy and, if not installed and used in accordance with the
instructions, 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 or
more of the
• 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 to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 5 •ADMINISTRATOR MANUAL •V2.8.2.3
SAFETY INFORMATION
The following convention is used within this manual. French translations of the critical levels are included.
Hazard Levels
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in minor or moderate
injury.
Indicates a situation which, if not avoided, could result in damage to property.
Indique une situation dangereuse qui, si elle n’est pas évitée, entraînera la mort ou des
blessures graves.
Indique une situation dangereuse qui, si elle n’est pas évitée, pourrait entraîner la mort
ou des blessures graves.
Indique une situation dangereuse qui, si elle n’est pas évitée, pourrait entraîner des
blessures mineures ou modérées.
Indique une situation qui, si elle n’est pas évitée, pourrait entraîner des dommages
matériels.
Other Message Levels
Indicates significant information which is essential for the product to function correctly.
Indicates useful information which helps in getting the most out of the product.
ELECTRICAL SAFETY
HALO 2.0, 2C
This product complies with IEC/EN/UL 60950-1, Safety of Information Technology Equipment. The product
shall be grounded either through a shielded network cable (STP) or other appropriate method. The power
supply used with this product shall fulfill the requirements for Safety Extra Low Voltage (SELV) and Limited
Power Source (LPS) according to IEC/EN/UL 62368-1 or IEC/EN/UL 60950-1.
HALO 3C
The HALO 3C family of sensors adhere to the KS X 3126 (electrostatic discharges) minimum performance
criteria. In certain cases of exposure to a high level of ESD exposure the HALO 3C would require a power
cycle to restore power to the downstream ethernet port.
DANGER
WARNING
CAUTION
NOTICE
DANGER
ATTENTION
MISE EN GARDE
REMARQUER
IMPORTANT
NOTE

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 6 •ADMINISTRATOR MANUAL •V2.8.2.3
LASER SAFETY NOTICE
HALO Smart Sensors contain a CLASS 1 LASER PRODUCT in accordance with
standard IEC60825-1:2014. This product complies with 21 CFR 1040.10 and 1040.11
except for conformance with IEC 60825-1 Ed. 3., as described in Laser Notice No.
56, dated May 8, 2019.
Caution – use of controls or adjustments or performance of procedures other than those specified
herein may result in hazardous radiation exposure.
No regular maintenance is required to keep this product in compliance.
Level 1 Maintenance Considerations
Level 1 Maintenance procedures for the HALO Smart Sensors do not require removal of any components
that would expose the Class 1 Laser Assembly.
HALO Smart Sensors contient un PRODUIT LASER DE CLASSE 1 conforme à la norme
IEC60825-1: 2014. Ce produit est conforme aux normes 21 CFR 1040.10 et 1040.11,
à l’exception de la conformité à la norme IEC 60825-1 Ed. 3., tel que décrit dans
l’Avis laser n ° 56 du 8 mai 2019.
Attention - L’utilisation de commandes ou de réglages ou la réalisation de procédures autres que celles
spécifiées dans le présent document peut entraîner une exposition à des radiations dangereuses.
Aucun entretien régulier n’est requis pour maintenir ce produit en conformité.
Considérations de maintenance de niveau 1.
Les procédures de maintenance de niveau 1 pour le capteur intelligent HALO ne requièrent pas le retrait
de composants susceptibles d’exposer l’assemblage laser de classe 1.
CAUTION
MISE EN GARDE

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 7 •ADMINISTRATOR MANUAL •V2.8.2.3
BATTERY
These products use a lithium battery as the power supply for its internal real-time clock (RTC). Under normal
conditions this battery will last for a minimum of five years. Low battery power affects the operation of the
RTC, causing it to reset at every power-up. The battery should not be replaced unless required, but if the
battery does need replacing, contact IPVideo Corporation support for assistance. Lithium coin cell 3.0 V
batteries contain 1,2-dimethoxyethane; ethylene glycol dimethyl ether (EGDME), CAS no. 110-71-4.
• Risk of explosion if the battery is incorrectly replaced.
• Replace only with an identical battery or a battery which is recommended by IPVideo Corporation
• Dispose of used batteries according to local regulations or the battery manufacturer’s instructions.
• Risque d’explosion si la batterie est remplacée de manière incorrecte.
• Remplacez uniquement avec une batterie identique ou une batterie recommandée par IPVideo
Corporation.
• Éliminez les piles usagées conformément aux réglementations locales ou aux instructions du fabricant.
DISPOSAL AND RECYCLING
When these products have reached the end of there useful life, dispose of it according to local laws and
regulations. For information about your nearest designated collection point, contact your local authority
responsible for waste disposal. In accordance with local legislation, penalties may be applicable for incorrect
disposal of this waste.
SUPPORT
Should you require any technical assistance, please contact your IPVideo Corporation Authorized Reseller.
If your questions cannot be answered immediately, your reseller will forward your queries through the
appropriate channels to ensure a rapid response. If you are connected to the Internet, you can download
user documentation and software updates.
Technical Support via Telephone: [phone]
Technical Support via Email: [e-mail]
Live technical support is available Monday through Friday (excluding holidays) between the hours of
8 AM and 5 PM Eastern Standard Time.
©2022 IPVideo Corporation. All Rights Reserved. This manual or parts thereof may not be reproduced in
any form unless permitted by contract or by written permission of IPVideo Corporation.
WARNING
ATTENTION

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 8 •ADMINISTRATOR MANUAL •V2.8.2.3
INTRODUCTION
HALO Smart Sensors are IoT devices that detects environmental changes that occur in many
locations including privacy concern areas where surveillance cameras can’t be installed. HALO
Smart Sensors are capable of detecting many things such as vaping, smoke, vaping with THC,
specific key words, gunshots, air quality, and aggression in areas a camera cannot be placed.
Additional sensors give HALO the ability to monitor air quality index (AQI), temperature, humidity,
many hazardous chemicals and more. When the sensor values exceed threshold levels, HALO
Smart Sensor can send alerts to responders.

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 9 •ADMINISTRATOR MANUAL •V2.8.2.3
1
2
3
4
5 6
7
HALO 2.0 AND HALO 2C HARDWARE OVERVIEW
The product shall be connected using a shielded network cable (STP). All cables
connecting the product to the network shall be intended for their specific
use. Make sure that the network devices are installed in accordance with the manufacturer’s
instructions. For information about regulatory requirements, see Electromagnetic Compatibility
(EMC) on page 4.
Le produit doit être connecté à l’aide d’un câble réseau blindé (STP). Tous
les câbles reliant le produit au réseau doivent être destinés à leur utilisation
spécifique. Assurez-vous que les périphériques réseau sont installés conformément aux
instructions du fabricant. Pour plus d’informations sur les exigences réglementaires, voir
Compatibilité électromagnétique (CEM) à la page 4.
1a. (HALO-V2.0) Network Connection (RJ-45) – requires 802.3af Power over Ethernet
1b. (HALO-2C) USB Ports – currently unused
2. Relay Connection (Plug supplied)
3a. (HALO-V2.0) USB Ports – currently unused
3b. (HALO-2C) Network Connection (RJ-45) – requires 802.3af Power over Ethernet
4. Locking Wing – see installation guide
5. Cover Securing Screws (3) – T10 Torx driver required
6. Multi-color LED Indicator
7. Light Sensor
REMARQUER
1a
1b
45 6
2
3a
3b
7

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 10 •ADMINISTRATOR MANUAL •V2.8.2.3
HALO 2 OUTER COVER REMOVED
The outer cover must be removed (by removing the three T10 TORX screws [5] with the provided
wrench) during installation and to perform a manual factory reset. The figure below shows
details exposed when the Outer Cover is removed.
15
8
8
9
11
10
12
13
13
14
7
16
17
7
8
9
13
11
12
17
15
14
13
10
16
8
7. Light Sensor on PC board
8. Microphones
9. Loudspeaker
10.Particle Air Intake Port
11. Particle Air Exhaust Port
12.Temperature and Humidity sensor
13. Clamping Screws
14. Inner Cover Mounting Screws (3)
15. Gas Sensors
16. Reset Button on PC Board
17. Inner Cover

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 11 •ADMINISTRATOR MANUAL •V2.8.2.3
11
12
813
13 9
8
7
16
10
14
15
17
18
20
19
21
HALO 2C OUTER COVER REMOVED
The outer cover must be removed (by removing the three T10 TORX screws [5] with the provided
wrench) during installation and to perform a manual factory reset. The figure below shows
details exposed when the Outer Cover is removed.
7. Light Sensor on PC board
8. Microphones
9. Loudspeaker
10.Particle Air Intake Port
11. Particle Air Exhaust Port
12.Temperature and Humidity sensor
13. Clamping Screws
14. Inner Cover Mounting Screws (3)
15. Gas Sensors
16. Reset Button on PC Board
17. Inner Cover
18. Gas Sensor
19. HALO 2C Expansion Board
20. Temperature/ Humidity Sensor
21. Plug Connector
8
8
9
7
19
12
13
18
16
15
14
11
17 10
21 13 20

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 12 •ADMINISTRATOR MANUAL •V2.8.2.3
HALO3C HARDWARE OVERVIEW
1. Input Network Connection (RJ45) –
requires 802.3AT or 802.3AF Power over
Ethernet
2. External Connector Terminal Block
3. Downstream Network Connection –
Supplies802.3AF Power overEthernet
4. Screw for Unit Assembly
5. Multi-color LED light (12)
6. Slot for Mounting Plate (4)
7. Slot for Mounting Plate Locking
Mechanism
8. Security Screw Slot for Locking
Mechanism
9. Lux Sensor
10. Speaker Grill
11. PIR Sensor
12. People Counting Sensor
13. Slot for Air
14. Security Screw Slot for Locking
Mechanism
15. Mounting Plate
16. Particle Sensor Port
87
2
3
1
6
45
9
16
10
11 12
13 14 15

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 13 •ADMINISTRATOR MANUAL •V2.8.2.3
HALO 3C MOUNTING PLATE REMOVED
The device must be separated into two halves by undoing one security [6] thentwist the device
apart to perform a manual factory reset. The figure below shows details exposed when the
Mounting Plate is removed.
Please refer to the HALO-3C Installation Guide found on https://halodetect.com/resources/
manuals-guides/for more information on installation.
31. Mounting Screw Hole
32. Opening for Ethernet External Connection
Wires
33. Mounting Plate Lock
34. Mounting Screw Hole
35. Security Screw Locking Mechanism
36. Clearing for Security Screw
34
32
31
33
35 36

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 14 •ADMINISTRATOR MANUAL •V2.8.2.3
SETUP PREREQUISITES
1. One or more HALO Smart Sensor devices connected to a standard office network where the
steps in the HALO Installation Procedure have been followed resulting in confirmation that
the device is operating and physically connected to the network.
2. Use one of three ways to find HALOs on the network. 
• Supply atleast a temporary DHCP Server to provide an initial IP Addresses 
• Use self-assigned APIPAaddresses 
• IPv6 Scan
3. If static addressing is planned, then the correct subnet mask, gateway address, and DNS
address must be known.
4. An accessible Windows 10 PC connected to the same network with the Chrome web browser
installed and must have the HALO Device Manager (HDM) installed, available at:
https://halodetect.com/resources/software-tools/
FINDING HALO SMART SENSORS ON A NETWORK
Start HALO Device Manager (HDM) on the PC by double clicking the program icon. Please refer
to the HDM Guide for connection instructions, available at:
https://halodetect.com/resources/manuals-guides/
There should be an IP address for each HALO device on the network (for example, 192.168.1.X ).

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 15 •ADMINISTRATOR MANUAL •V2.8.2.3
FIRST TIME SETUP
Establishing Connection
Connecting to a HALO device can be done
in two separate ways. It can be done with
the HALO Device Manager HDM (see HDM
Manual) which is the preferred method for
setting up multiple HALOs at once.
It can also be done by typing the HALO device’s
IP address in Google Chrome. A popup will
appear asking for a username and password.
Type “admin” for the username and
“changeme” for the password. Click
“Sign in”.
Initial Device Setup
The following prompt will pop up. For
security reasons it is recommended to
click the blue text saying, “Click here”.
This will ensure passwords are not visible
on the network.
If you follow the security recommendations a popup
from Chrome will give a warning saying, “Your
Connection is not private”. The warning means the
browser does not know who the server is, but the
connection is secure.
Click “Advance”, then click “Proceed to <ip address>
(unsafe)”.

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 16 •ADMINISTRATOR MANUAL •V2.8.2.3
FIRST TIME SETUP: Initial Device Setup CONTINUED
The search bar will say “Not secure | https”. Again, this in fact is safe and preferred. Under “Initial
Device Setup” type in the username “admin” and “changeme” which was used earlier.
Click “Next”. The following Device
Setup prompt will appear. Fill in the
information Device Name, time zone,
and country.

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 17 •ADMINISTRATOR MANUAL •V2.8.2.3
FIRST TIME SETUP
Email Provider
Another Initial Device Setup prompt
will appear. This is the last one. Start
by clicking “Select Email Provider” in
the top right cornerand select the
email provider to use with the HALO
device.
Once an Email Provider is selected,
information on Host, Port, Security,
and Auto Correct will update. In
most cases “Auto Correct” will
not be necessary as the server
may block the email due to “Auto
Correct” trying many ways to find
the correct settings. Fill in other
requested information then click
“Save and Test Connection” then
click “Next”.
License Agreements
IPVideo Corporation’s License
Agreement and Privacy Policy will
pop up next. After reading the
following information click “I have
read the above” and then “Next”.

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 18 •ADMINISTRATOR MANUAL •V2.8.2.3
FIRST TIME SETUP
Save Settings & Reboot
Whomever read the last two forms
shall fill out the required information.
Once filled out click “Save Settings
and Reboot Device”. Upon click an
information webpage will pop-up to
give the user more information on
how to effectively use their device.
A loading screen will appear of the
HALOSmart Sensor rebooting. Once
the device is rebooted the webpage
will open.
Final Setup
The HALO device has been setup for
the first time.

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 19 •ADMINISTRATOR MANUAL •V2.8.2.3
CONNECTION TO A HALO SMART SENSOR
Navigate to the desired HALO by either selecting the HALO in HDM and Open Web Page from
the Actions drop down menu (Chrome must be default browser) or navigating directly to the IP
address in the Chrome web browser. The default Username is “admin” and the default password
is “changeme”. HALO contains a security feature that requires a user to generate a new means
of authentication before access is granted to the device for the first time.
*If the HALO that is updated from a version prior to 2.2 and has the default password it will
change the existing password to “changeme” and require a password change on first login.
HALO restricts access to the built-in web server by usernames and passwords at two different
levels, “admin” and “viewer”.
Username Requirements for Admins:
• 5+ Characters
• No Spaces or Special Characters
Password Requirements for Admins:
• 8+ Characters
• 1+ Lowercase Letter
• 1+ Uppercase Letter
• 1+ Numeric Character
• 1+ Special Character (!@#$%^&*_- are allowed)
• Cannot Contain Username
An END USER LICENSE AGREEMENT (EULA) has been provided at first login to every HALO to
ensure proper utilization of the HALO software and present important terms, restrictions on use,
limits on liability of IPVideo to the end-user, and other useful clauses. At login, the user will be
required to add the end username, email address, organization and title to acknowledge.
DASHBOARD
From this dashboard you can navigate to various display and configuration pages including:
• Sensors
• About
• Device
• Network
• Users
• Events
• Actions
• Notifications
• Integration
• Image

1490 North Clinton Ave, Bay Shore NY 11706 | ipvideocorp.com | [e-mail] | 631.969.2601
Page 20 •ADMINISTRATOR MANUAL •V2.8.2.3
LIVE VIEW
The dashboard has two views for display. These views include Dashboard and Sensors.
Dashboard
Live information presented including “Normal” and “Alert” state display through color changing
indicator icons as well as live readings of specific signatures. This can be configured from the
“Image” Tab. More info on next page about Image Tab.
Sensors
The raw sensors displayed in numerical values, including AQI (Air Quality Index).
(Note: AQI is a normalized value generated over a long period of time and will not appear for at
least an hour after a reboot or power cycle.)
For HALO 2C & 3C, CO2cal will be displayed instead of CO2eq. The HALO2C & 3C incorporates a
calibrated sensor to accurately detect CO2 levels within a room.