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MH-Z19C NDIR CO2 Sensor for HVAC and IAQ

  • Product modelMH-Z19C
  • Product brand winsen
  • Application FieldsInternet of things,Smart Phone,Smart Home,Oil-fueled Automotive

Hanwei Electronics Group Corporation


Product Details 产品规格书下载
Principle Introduction:
MH-Z19Z19C NDIR infrared gas module is a common type, small size sensor, using non non-di spersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, nonnon-oxygen dependent and long life. Built Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of m ature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design. 
Applications :
 MH-Z19C NDIR infrared gas module is widely used in
* HVAC refrigeration
*Indoor air quality monitoring.
*Smart home appliances
*Air cleaner
Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.

Product ModelMH-Z19C
Target Gas
Working voltage5.0 ± 0.1V DC
Average current< 40mA(@5V)
Peak current125mA (@5V)
Interface level3.3 V(Compatible with 5V)
Measuring rangerefer to Table 2
Output signal
UART(TTL interface level 3.3V)

Preheat time1 min
Response TimeT90< 120 s
Working temperature
-10 ~ 50 ℃
Working humidity0~ 95% RH (No condensation)
Dimension33 mm×20 mm×9 mm (L×W×H)
Lifespan> 5 years

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