MH-Z19B NDIR CO2 SENSOR is designed for HVAC, building ventilation system, indoor air quality monitoring system, with infrared working principle.

MH-Z19B NDIR infrared gas module is widely used in
* HVAC refrigeration
*Indoor air quality monitoring.
*Smart home appliances
*School
*Air cleaner

Target gas: Carbon Dioxide
Range: CO2(0-2000ppm/0-5000ppm)
Application: HVAC,building ventilation system, indoor air quality monitoring system

Product Model	MH-Z19B
Target Gas	CO2
Working voltage	4.5~ 5.5 V DC
Average current	< 60mA(@5V)
Peak current	150mA (@5V)
Interface level	3.3 V(Compatible with 5V)
Measuring range	refer to Table 2
Output signal	UART(TTL interface level 3.3V)
	PWM
	DAC(default 0.4-2V)
Preheat time	3 min
Response Time	T90< 120 s
Working temperature	0 ~ 50 ℃
Working humidity	0~ 90% RH (No condensation)
Dimension	33 mm×20 mm×9 mm (L×W×H)
Weight	5g
Lifespan	> 5 years