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ZE08-CH2O Formaldehyde Sensor

SKU 49745874

This Formaldehyde (HCHO) sensor from PMD Way is an Arduino and Raspberry Pi-compatible module, and makes an ideal solution for indoor air quality monitoring. Free delivery, worldwide.

It can be used to measure HCHO in air. Through it, you can know the air quality. This sensor module is widely used in many air testing applications - such as indoor air quality, real time quality monitoring stations.

Our HCHO sensor module can detect and measure HCHO accurately. Many advantages are available, such as strong anti-jamming capability, high stability, ATC, high sensitivity(up to 0.01ppm) and long life (two years in the air). 


  • When using the sensor module, do not touch the white sensing film.
  • Please keep away from high concentrations of hydrogen sulfide, hydrogen, methanol, ethanol, and carbon monoxide. These gases will affect the precision and will reduce the service life.
  • Warm up module for five minuntes before taking a reading
  • Keep the sensor away from organic solvent, coatings, medicine, oil and high concentration gases
  • Avoid excessive impact or vibration should be avoided.
  • Please do not use the modules in strong air convection environment.
  • Please do not expose the modules to high concentration organic gas for a long time.


  • High stability and sensitivity
  • Automatic temperature compensation
  • Wide input voltage (3.3~6V DC)
  • Supports DAC and UART output
  • High resolution (0.01ppm)


  • Input Voltage: 3.3~6V
  • Target Gas: HCHO
  • Interference Gas: Alcohol, CO & etc
  • Detection Range: 0~5ppm
  • Resolution: 0.01ppm
  • Warm Up Time: ≤3 minutes
  • Response Time: ≤60 seconds
  • Resume Time: ≤60 seconds
  • Output Signal: Optional DAC (0.4~2V, for 0-5ppm) or UART (9600)
  • Operating Temperature: 0~50 degrees C
  • Operating Humidity : 15%~90% RH (No Condensation)
  • Storage Temperature: 0~50 degrees C

Click here for tutorial and more information