Talosys NB307-915M
CO2 sensors are used to control ventilation systems and monitor indoor air quality. They can be stand-alone sensors or integrated into thermostats or air quality monitoring platforms.
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Talosys NB307-915M
Indoor air quality monitoring platform with CO2 sensors with web-portal for long-term monitoring.
Hub Highlights:
- CO2 value displayed on device and web-portal.
- No building automation system connection. Dashbaord displays historical data via graphs and has configurable alarms.
- Excellent performance on Hub CO2 accuracy testing protocols
- Includes CO2, temperature, humdity, and other sensors
Last Edited on: 6/26/2025
| Sensor Type | Non-dispersive infrared (NDIR) Manufacturer: Senseair |
| Power Input | 5 VDC (Powered via USB or four AA batteries) |
| Outputs | Wifi to cloud-based interface (requires gateway) |
| Altitude Correction Method | Unknown |
| Measurement Range | 400-2,000 ppm with specified accuracy, up to 10000 ppm |
| Reported Accuracy | ± (70 ppm + 3% of reading) |
| Display of C02 Value | On device and web (account required) |
| Uses Automatic Background Calibration (ABC) | Yes |
| Model | Indoor Ambience Monitoring Sensor |
| Date of Test | August 8-9, 2023 |
| Sample Size | 5 |
|
Error of CO2 measurement @1100 ppm (average) (ppm)
|
-40 |
|
Error of CO2 measurement @ 1100 ppm (standard deviation) (ppm)
|
5 |
|
Accuracy Metric
|
less than ±75ppm |
|
Noise of CO2 measurement @1100 ppm (Average) (ppm)
|
2 |
|
CO2 Full results
|
See Box Plot |
| Operating Power for Sensor (watts) | 0.039 |
| Operating Power for Gateway (watts) | 3.24 |
|
Operating Power for Sensor + Gateway (watts)
|
0.071 |
|
Operating Power Metric
|
less than ±0.5 W |
| Maximum Number of Sensors per Gateway | 100 |
Data Collection
Sample Size
5
Data Source: Staff at the UC Davis Western Cooling Efficiency Center
User interface
1. Can the sensor display the CO2 level to occupants? If yes describe.
Yes - Sensor displays live CO2 readings and graph of historical CO2 data on e-ink screen. Display also available on webpage (sensors must be connected to internet), account required.
User interface
2. Can the sensor display a visual indicator to occupants that the CO2 level has exceeded a programmed threshold? If yes, describe (what does the indicator look like, what the default thresholds are, and can the threshold be changed).
Yes - Screen displays a happy face when CO2 is below the low setpoint, a sad face when CO2 is above the high setpoint, and a neutral face when CO2 is between the low and high setpoints. Built-in LED flashes green when CO2 is below the low setpoint, red when CO2 is above the high setpoint, and yellow in between. Setpoints are configurable on webpage.
Reporting capabilities
3. Can the sensor alert facilities (such as an email, text, or call phone application) when the CO2 level has exceeded a programmed threshold? If yes, describe (what does the indicator look like and can the threshold be changed).
Yes - Sensor has auditory alarm that sounds when CO2 exceeds the high setpoint. Alarm can be muted. Email and text alerts can also be configured on the webpage.
Integration capabilities
4. Can the CO2 sensor interface with a building automation system (BAS) or demand control ventilation (DCV) system controller? If yes, describe if integration capabilities are vendor specific.
No
Integration capabilities
5. If sensor can interface with a BAS or DCV system controller, is additional hardware required?
NA
Reporting capabilities, Integration capabilities
6. How can the CO2 sensor data be logged? If proprietary software, describe (what type of account is needed, what logging intervals are available, what does it look like, and describe its capabilities including data download capabilities).
Logged data available on webpage. Logging interval is 10 minutes by default, but can be configured to 1-1080 minutes by connecting the sensor to a PC via USB and using the ToolBox software.
Installation
7. Does the sensor require specialized software for installation? If yes, describe.
Yes - Requires installation of ToolBox software to configure some settings, but not required for operation.
Installation
8. Does the sensor require specialized training for installation? If yes, describe.
No
Operation
9. Does the sensor require on-going maintenance? If yes, describe.
No
Operation
10. Does the sensor require service contracts for ongoing data access? If yes, describe.
No
Miscellaneous
11. Are there any other notes about the user experience?
Sensor requires proprietary Talosys gateway to connect to internet. To access web portal, sensors must be connected to internet.