Veris CWV2
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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Veris CWV2
Carbon dioxide sensor for long term monitoring and demand control ventilation.
Hub Highlights:
- Does not have display.
- Easily connected to any building automation system for monitoring or ventilation control.
- Excellent performance on Hub CO2 accuracy testing protocols
- Automatic background calibration and manual calibration available.
Last Edited on: 6/26/2025
| Occupancy Sensor Type | Non-dispersive infrared (NDIR) Manufacturer: Sensirion |
| Power Input | 20-30 VDC, 24VAC |
| Outputs | Selectable to 4-20 mA, 0-5 V, 0-10 V |
| Altitude Correction Method | Unknown |
| Measurement Range | 0-2,000 ppm |
| Reported Accuracy | ± 40 ppm ± 5.5% |
| CO2 Display | None |
| Uses Automatic Background Calibration (ABC) | Yes |
| Date of Test (including warm-up period if device uses automatic background calibration) | October 1-October 14, 2024 |
| Sample Size | 5 |
|
Error of CO2 measurement @1100 ppm (average) (ppm)
|
67 |
|
Error of CO2 measurement @ 1100 ppm (standard deviation) (ppm)
|
24 |
| Accuracy Category | less than ±75ppm |
|
Noise of CO2 measurement @1100 ppm (Average) (ppm)
|
4 |
|
CO2 Full results
|
See Box Plot |
| Operating Power for Sensor (watts) | 0.33 |
| Operating Power for Gateway (watts) | NA |
|
Operating Power for Sensor + Gateway (watts)
|
0.33 |
| Operating Power Category | less than ±0.5 W |
| Maximum Number of Sensors per Gateway | NA |
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.
No. Other models from the same manufacturer are available that include displays.
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).
No
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 - Through BAS integration
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.
Yes - 4-20 mA, 0-5 V, or 0-10 V direct output to BAS controller
Integration capabilities
5. If sensor can interface with a BAS or DCV system controller, is additional hardware required?
Yes - Separate BAS controller needed
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).
No built-in logging capabilities. Sensor analog output signal can be logged by end user.
Installation
7. Does the sensor require specialized software for installation? If yes, describe.
No
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?
N/A