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Application:HVAC equipment,Air quality monitoring equipment,Ventilation system,Air purification equipment,Smart home
Feature:Gold plating technology for cavity, waterproof and anti-corrosion,High sensitivity, low power consumption
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Production Description:
MH-Z14 NDIR Infrared gas module is a common type, small size sensor, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature sensor can do temperature compensation; and it has digital output and analog voltage output. This infrared gas sensor is developed by the tight integration of mature infrared absorbing gas detection technology, Precision optical circuit design and superior circuit design.
Feature:
Gold plating technology for cavity, waterproof and anti-corrosion
High sensitivity, low power consumption
Good stability, long lifespan
Temperature compensation, excellent linear output
Output modes: UART, PWM
Anti-water vapor interference, no poisoning
Application:
HVAC equipment
Air quality monitoring equipment
Ventilation system
Air purification equipment
Smart home

Main technical parameters:

Model No.	MH-Z14B
Detection Gas	CO2
Working voltage	DC (5.0±0.1) V
Average current	< 60 mA(@5V power supply)
Peak current	150 mA（@5V power supply）
Interface level	3.3 V (Compatible with 5V)
Measuring range	0~10000ppm (max 50000ppm can be extended)
Output signal	UART (TTL 3.3V)
Output signal	PWM
Preheat time	10S
Response Time	T90 < 90s
Working temperature	-10℃ ~ 50℃
Working humidity	0~95%RH
Storage temperature	-20℃ ~ 60℃
Weight	<15 g
Lifespan	>10 years

2 pcs MH-Z14B NDIR CO2 Sensor Dual-channel with UART, PWM output