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MH-Z19 Infrared CO2 Sensor Module for CO2 monitor


  1. Operating voltage: 3.6 V ~ 5.5V DC
  2. Average current: < 18 mA
  3. High sensitivity, high resolution.
  4. Low energy consumption.
  5. Output mode: UART and PWM wave.
  6. Temperature compensation, excellent linear output.
  7. Good stability and Long lifespan.
  8. Anti-interference of water vapor.

299.00 500.00

This is MH-Z19 Infrared CO2 Sensor Module for CO2 monitor. The MH-Z19 NDIR infrared gas module is a common type, small size sensor, using non-dispersive infrared (NDIR) principle to detect the existence of CO 2 in the air, with good selectivity, non-oxygen dependent and long life.

The built-in temperature sensor can do temperature compensation; it has digital output an analog voltage output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design, and superior circuit design.

MH-Z19 NDIR infrared gas module is widely used in the HVAC refrigeration and indoor air quality monitoring.


Features :

  1. High sensitivity, high resolution.
  2. Low energy consumption.
  3. Output mode: UART and PWM wave.
  4. Temperature compensation, excellent linear output.
  5. Good stability.
  6. Long lifespan.
  7. Anti-interference of water vapor.
  8. No poisoning.

Package Includes :

1 x MH-Z19 Infrared CO2 Sensor Module.

1 x Connecting Cable.

Weight 100 g
Operating Voltage(VDC) 3.6 to 5.5
Average Current(mA) <18
Interface Level 3.3V
Measuring Range 0~5%VOL optional
Output Signal PWM UART
Preheat Time(min) 3
Preheat Time 90<60
Operating Temperature (°C) 0 to +50
Lifespan >5
Dimensions in mm (LxWxH) 40x20x9
Weight (gm) 6
Shipment Weight 0.02 kg
Shipment Dimensions 7 x 6 x 4 cm

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