KCD-AN300 - CO2 Sensor Module for OEM applications. 0~2000 ppm, ~5000 ppm, ~10000 ppm PWM (period 1004 ms) and analog outputs
MH-Z14A, MH-Z14B, MH-Z19B, MH-Z19C, MH-Z19D, MH-Z19E - detection gas CO2, detection range 400~10000 ppm optional, non-dispersive infrared (NDIR) principle, 50 ppm + 5 % reading value, multiple output modes: UART, PWM