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Products keywords | co2 sensor co2 sensor arduino co2 sensor arduino | ||||
Supply power: | 10~30V DC co2 sensor arduino co2 sensor arduino | ||||
Signal output | 4~20ma/0~5V/0~10V/RS485(Modbus-RTU) | ||||
Protection level | IP65, can be used for snow and rain environment | ||||
Working environment | 0 ~ 70 ℃, 0 ~ 95% RH (no condensation) | ||||
Temperature effects | comes with temperature compensation | ||||
CO2 Measurement range | 0 ~ 5000ppm (can be customized) | ||||
CO2 Accuracy | ± (40ppm + 3% F · S) (25 ℃) | ||||
Maximum power consumption | RS485 | 0.4W | |||
4-20ma/0-5v/0-10v | 1.2W | ||||




RS485 OUTPUT | ||||
Line color | Description | |||
power | brown | Power supply(10 ~ 30V DC) | ||
black | Power supply negative | |||
Communication | yellow | 485-A | ||
blue | 485-B | |||
Range 10V-30V of wide voltage is available in power input, the A wire and B wire can not be connected contrary when connecting to 485 signal, and the address among several devices on the total wire can not be conflicted. | ||||

4-20ma, 0-5v, 0-10v OUTPUT | ||||
Line color | Description | |||
Power | brown | Power supply | ||
black | Power supply negative | |||
Output | blue | CO2 signal positive | ||
green | CO2 signal negative | |||
NOTE: Two types wire methods 1.Four-wire connection diagram 2.Three-wire connection diagram | ||||



