NDIR CO2 Sensor MH-Z14A Carbon dioxide detection

MH-Z14A NDIR infrared gas module is a small size and common type sensor using the non-dispersive infrared (NDIR) principle to detect the existence of CO2 in air, with good selectivity, non-oxygen dependent and long lifetime.

Description of NDIR CO2 Sensor MH-Z14A Carbon Dioxide Detection:

Detection range: 0 ~ 5% VOL optional
Operating voltage: 4.5 V ~ 5.5 V DC
Output signal: UART, analog voltage signal, PWM waveform

Built-in temperature compensation; it has digital output, analogue voltage output and PWM output.

This sensor is developed based on the reliable infrared absorbing gas detection technology, large precision optical circuit design and superior circuit design.

Applications

This sensor can be used in a multitude of fields:

HVAC refrigeration equipment, air quality monitoring equipment, fresh air system, air purification equipment, Smart Home (smart home), educational facilities (schools, colleges, universities) and even enterprises.

Technical Parameters of NDIR CO2 Sensor MH-Z14A Carbon Dioxide Detection:

Tips: For more information about the parameters, please refer to the latest manual provided by the vendor.

Working voltage	4.5 V ~ 5.5V DC
Average current	<60mA(@5V input)
Peak current	150 mA(@5V input)
Interface level	3.3 V(5V compatible)
Measuring range	0~10000ppmoptional(refer to table 2)
Output signal	Serial Port (UART, TTL level)
	PWM
	Analog output(DAC), 0.4-2V
Preheat time	3min
Response Time	T90<120s
Working temperature	0℃ ~ 50℃
Working humidity	0~90%RH(no condensation)
Weight	15g
Lifespan	>5 year

Target Gas	Measuring Range	Accuracy
Carbon Dioxide (CO2)	0~2000ppm	±(50ppm +3%reading value)
	0~5000ppm	±(50ppm +3%reading value)
	0~10000ppm	±10% reading value