HCH-22 HCHO (CH2O), Temperature, Humidity %RH Formaldehyde Monitor Environmental Formaldehyde Monitor Environmental

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Place of Origin:
China (Mainland)
Brand Name:
Model Number:
Temperature Accuracy::
±0.5 deg C
Temperature range::
10 - 60 deg C (14-140 deg F)
percent RH Humidity Measurement::
Accuracy: +/- 3.0%
Temperature Accuracy:
±0.5 deg C

This portable gas detector is used to monitor Formaldehyde (HCHO)concentration and also measure the temperature and humidity of the environment. It also displays LCD icons indicating the surroundings is safe for human beings.


Formaldehyde (HCHO) is one of the most common poisonous substances found in daily life and industry. Thus having this instrument will help you achieve a safer place for you and your love ones.



Widely used in furniture, floorboards, wallpapers, paint, gardening, indoor decorations, construction, dye stuffs, paper manufacture, pharmaceutical, medical, food, cleaning, synthetic resins, textile treatment, horticulture and cosmetics.




  • Used the latest technologies to ensure the accuracy
  • Selectable measurement unit (mg/ppm)
  • Easy to use
  • Large display for easy reading
  • With backlight function
  • Can be hang on wall
  • Low battery indicator
  • Sleep mode function
  • Selectable temperature unit (deg C/ deg F)
  • Zero drift for formaldehyde reading



  • Parameter: HCHO (CH2O), Temperature, Humidity  percent RH
  • Formaldehyde Measurement
    • Range  : 0--5mg/
    • Resolution :  0.01mg
    • Accuracy +/-5.0 percent  + 0.03mg
    • o   At 25 deg C, 30 -70 percent RH: +/- 10.0 percent +0.03mg
  • Temperature Measurement
    • Range : -10 - 60 deg C (14-140 degF)
    • Accuracy : +/- 0.5 degC
  • Humidity Measurement
    • Range : 0 -99.9 percent  RH
    • Accuracy +/- 3.0 perecent 
    • Temperature Unit:  deg C / deg F
  • Measurement unit: (mg / ppm)
  • Battery: 3 x 1.5V (LR6) (not included in the set)
  • Dimension: 125 x 64 x 32mm
  • Weight: approx. 177gms


Set Includes:

  • 1 x Formaldehyde monitor (main unit)
  • English user manual
  • Standard factory package