The MH-Z19C module is a next-generation CO2 sensor based on the non-dispersive infrared (NDIR) principle. MH-Z19C is the successor of the widely popular MH-Z19B. See below for a comparison.
The MH-Z19C 400~2000ppm CO2 sensor has built-in temperature compensation and communicates over UART and PWM with the host controller. This particular version comes with a 7pin connector on a cable to be easily integrated with our Icon64 device.
MH-Z19C has better consistency and performance than MH-Z19B. They share same size and interface, and the MH-Z19C can directly replace the MH-Z19B. See the data sheet for further details.
|CO2 detection range||400~2000ppm, 400~5000ppm, 400~10000ppm|
|Accuracy||±(50 ± 5% reading value) ppm|
|Power supply||5.0 ± 0.5V||5.0 ± 0.1V|
|Average current||< 20mA(@5V)||< 40mA(@5V)|
|Peak current||150mA (@5V)||125mA (@5V)|
|Interface level||3.3V (compatible with 5V)|
|Output||UART(TTL interface level 3.3V)/PWM|
|Response Time||< 120s|
|Working temperature||0 ~ 50°C|
|Working humidity||0 ~ 95%RH (no condensation)|
|Dimension||33mm × 20mm × 9mm (L×W×H)|
|Lifespan||> 5 years|
|Gas inlet||Two windows||One window|
|Storage temperature||-10 ~ 50°C||-20 ~ 60°C|
|Stabilization time||24h since power on||30min since power on|