• CO2 SENSOR
  • infrared-gas-sensor

MH711A NDIR CO2 SENSOR

  • • Detection Range: 0~30%VOL optional
  • • 0~30%VOL optional
  • • Output signal: PWM, UART, IIC

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Principle Introduction:

Characteristics:

Target Gas:CO2

Measurement Range:0~30%VOL optional

Output Signal:IIC

MH-711A is a universal type intelligent sensor to detect CO2 in air taking advantages of non-dispersive infrared (NDIR) principle.With high selectivity, no oxygen dependence, high performance and long lifespan features, MH-711A also has built-in temperature compensation feature. MH-711A is a compact and high-performance sensor based on infrared absorption of gas detection technology, micro-machining and sophisticated circuit design.


Applications :

Widely used for industrial field instrumentation, industrial-process control and safety protection


Technical parameters :
Working voltage 4.5 V ~ 5.5V DC
Average current < 85 mA
Interface level 3.3 V
Measuring range 0~5%VOL optional
Output signal PWM
UART
Preheat time 3min
Reponse Time T90 < 30s
Working temperature 0℃ ~ 50℃
Working humidity 0~95%RH
Weight 21 g
Lifespan >5 year

Reference Circuit :

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