Our indoor Modbus Sensor for CO2, Temperature and humidity ANDRACO2-MD records the ambient air’s CO2 concentration in living spaces, office spaces, etc. The ANDRACO2-MD converts the values measured in the ranges of optionally 0-2000 ppm or 0-5000 ppm through a Modbus connection. The sensors can be connected to a variety of PLC or DDC controllers.
The CO2 value is measured via the NDIR sensor, which is able to compensate for possible pollution with the help of its 2-ray measuring principle. Optionally, our ANDRACO2-MD is available with an additional sensor for measuring temperature and humidity.
Additional options for sensor ANDRACO2 (optional extensions):
- LED lights for color indication / or / LCD display for
- additional VOC sensor (Volatile Organic Compounds),
- active potentiometer,
- passive potentiometer,
- relay.
Alternative sensor versions:
- Standard indoor CO2, temperature and humidity Sensor – ANDRACO2 – active sensor with output 0-10V or 4-20 mA.
Product number
Product number: ANDRACO2-MD
Technical Specifications
| Protocol: | Modbus (ASCII/RTU), RS485 |
| Power supply: | 12 … .34 VAC/VDC |
| Power consumption: | 40 … 100 mA |
| Electrical connection: | Screw clamps |
| Sensor element: | (NDIR) sensor with automatic background calibration |
| Measuring range CO2: | 0 … 2000 ppm or 0 … 5000 ppm |
| Accuracy: | < ± (50ppm +2% of scale reading) at 25°C and 1013 mbar |
| Optional: | |
| Operating temperature: | 0°C…+50°C |
| Humidity: | 10…95% r.h. |
| Protection class: | IP30 (indoor use) |
| Housing: | Material ABS |
| Colour: | RAL9011 |
Want to learn more about how our CO2 and quality sensors work and how they can benefit your application?
Here, you can read all about the Comparison Of Siemens QPA And Andivi CO2 Sensors to understand how they stack up in terms of performance, features, and applications.
Datasheet ANDRACO2-MD
Datasheet ANDRACO2/T/F-MD
Modbus CO2 sensor Versions: LCD display / LED indication / without indication
How ppm affect human well-being?
| Level od ppm | Effects | Effects |
| > 40.000 | ⬤ | serious damage / deadly |
| 5000 | ⬤ | dangerous on prolonged exposure |
| 2000 – 5000 | ⬤ | negative health effects |
| 1200 | ⬤ | ventilation necessary |
| 1000 | ⬤ | ventilation desirable |
| 800 | ⬤ | accepted level |
| 450 – 600 | ⬤ | healthy indoor climate |
| 250 – 350 | ⬤ | healthy outside air level |
Algorithm: CO2 and VOC levels comparison
Additional info for ANDRACO2-MD
| Protocol: | Modbus (ASCII/RTU), RS485 |
| Power supply: | 12-34 VAC/VDC |
| Dimensions: | 75 x 69 x 44 mm |
| Housing: | PA6, Color RAL 9011 |
| Protection class: | IP65 |
| Sensor: | CO2 Sensor |
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