This CO2 sensor using NDIR principle to detect the CO2 concentration in the air, designed with advanced infrared absorption gas detection technology.

Specification
Range: 0 to 2000 ppm, 0 to 5000 ppm, 0 to 10000 ppm
Accuracy: 3% FS
Output: RS485, 4 ~ 20mA
Supply: 24VDC