EXTECH FM200 Formaldehyde (CH2O or HCHO) Meter

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  • Simultaneously displays Formaldehyde concentration, Air Temperature, and Relative Humidity readings
  • Large LCD display with backlighting
  • Adjustable Audible alarm (default at 0.08ppm)
  • Designed with Electrochemical CH2O sensor
  • Built-in bumper that allows the fan inside the sensor to draw in gas quickly
  • CH2O Calibration function in fresh air
  • Min/Max, Data Hold, Auto power off and Low battery indicator
  • Complete with soft tube (approx. 1ft/300mm), sensor with 2.1ft (657mm) cable, 6 AAA batteries and carrying case