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Extech FM200 Formaldehyde Meter
Extech FM200 Formaldehyde Meter
Extech FM200 Formaldehyde Meter
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Price: $429.99

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Availability: Subject to availability
Product Code: FM200


Extech FM200 Formaldehyde Meter

The Extech FM200 Formaldehyde Meter measures the concentration of gaseous formaldehyde (HCHO or CH2O) from 0.00 to 5.00 ppm. Formaldehyde is a common organic compound that comes from a variety of sources including paints, floor finishes, cigarette smoke, and varnishes. Formaldehyde is a known human carcinogen and plays a major role in occupant health and safety in the workplace and at home.

The FM200 features an audible alarm that is factory-set at 0.08 ppm concentration of HCHO, but can be adjusted as needed. Air temperature and relative humidity, two important parameters in indoor air quality and occupant comfort, are also measured and displayed by the FM200. A soft tube is included with the FM200 in order to take measurements in areas which are not easily accessed. The actual sensor is attached to a cord measuring 2.1 ft (66 cm) in length, increasing measurement versatility. The FM200 Formaldehyde Meter also features manual calibration in fresh air, recall of min/max values, data hold, auto power off, and low battery indicator.

  • Simultaneously displays formaldehyde concentration, air temperature, and relative humidity readings
  • Large LCD display with backlighting
  • Adjustable Audible alarm (default at 0.08 ppm)
  • 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


  • Extech FM200 Formaldehyde Meter
  • Soft tube, approximately 1 ft (300 mm) long
  • Sensor with 2.1 ft (657 mm) cable
  • Six AAA batteries
  • Carrying case

Warranty Information

The Extech FM200 Formaldehyde Meter carries a 1-year warranty.

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