MH-Z19C NDIR CO2 SENSOR

MH-Z19C-DZ 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 compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

Working Principle

MH-Z19C-DZ 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 compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

Performance

Application

Product Parameters

Model No.MH-Z19C-DZ
Detection GasCO2
Working voltageDC(5.0±0.1)V
Average current< 40mA (@5V power supply)
Peak current125mA (@5V power supply)
Interface level3.3 V (Compatible with 5V)
Detection Range400~5000ppm(optional)(400~1000 0ppm range could be customized)
Output signal

Serial Port (UART) (TTL level 3.3V)

PWM
Analog output(DAC) (default 0.4~2V) (0~3V range could be customized)
Preheat time2.5min
Response TimeT90 < 120s
Working temperature-10℃~50℃
Storage temperature-20℃~60℃
Working humidity0 ~ 95% RH (No condensation)
Weight5 g
Lifespan> 5 years

Application Solution

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