Description
3-in-1 Greenhouse CO2, Temperature and Humidity Sensor. Monitor three greenhouse climate variables through one RS485 connection for integrators and commercial growers.
Specifications
The table describes the listed configuration. Confirm the ordered range, output variant, accessories and acceptance criteria before procurement.
| Parameter | Specification |
|---|---|
| Power | 9–24V DC |
| CO2 range | 0–5,000 ppm |
| CO2 resolution | 1 ppm |
| Temperature range | −40 to 80°C |
| Temperature accuracy | ±0.5°C at 0–60°C |
| RH range | 0–100% RH |
| RH accuracy | ±3% RH at 20–80% RH |
| Operating humidity | 0–95% RH, non-condensing |
| Output | RS485 Modbus |
Selection and System Integration
Use a combined sensor when one mounting position reasonably represents all three variables. Choose separate sensors if CO2 and temperature need different measurement locations. Request the CO2 accuracy definition before specifying acceptance limits.
Installation and Application Notes
This version does not include illuminance or PAR measurement. Keep the sensing openings accessible to representative airflow and protected from water spray. Confirm register addresses, units and calibration behavior before integrating the device.
Sample Evaluation
Before a larger order, check the selected sample against the agreed specification using representative operating conditions. Confirm wiring, power, output units and controller communication, then record reference measurements and any configuration changes. Agree on the required documents, packing and replacement components as part of the quotation.
Application FAQ
Is this the same as the website’s 4-in-1 greenhouse sensor?
No. This sheet specifies CO2, temperature and humidity only. It is a separate configuration without the fourth light-measurement channel.
Request a Project Quotation
For CO2 temperature humidity sensor selection, send the following details so Wewin Smart Agri can help match the configuration and coordinate sample evaluation and a batch quotation:
- Required climate variables and operating ranges
- Installation positions and controller register requirements
- Calibration requirements, cable length and quantity
- Destination country, estimated order quantity and required delivery schedule
Send your application requirements for configuration review and quotation. Related project information is available in our agricultural sensor range.





