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 into a linear 0-10 V output signal.
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: | 100 … 130 mA |
Electrical connection: | Screw clamps |
Output: | 0…10 V or 4-20mA |
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: | |
Temperature: | 0 … 10 V or 4-20 mA |
Accuracy: | ± 0,2 K + max 3% full scale |
Humidity: | 0 … 10 V or 4-20 mA |
Accuracy: | < ± 3% at 25 °C between 10% … 90% rel. humidity |
Operating temperature: | 0°C…+50°C |
Humidity: | 10…95% r.h. |
Protection class: | IP30 (indoor use) |
Housing: | Material ABS |
Colour: | RAL9011 |
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 |