Extech FM100 Formaldehyde Monitor

Not in stock. Usually ships in 3-5 business days [?]

Need Help? Call a Temperature Engineer 1-800-884-4967

We're open 8:00am to 5:30pm ET


  • Designed with Electrochemical CH2O sensor
  • Back stand for desktop display or can be wall mounted
  • 0 to 5.00ppm (mg/m3) formaldehyde range
  • 32 to 122°F (0 to 50°C) temp range
  • 20 to 90% RH humidity range
  • 1 Year warranty

What's in the Box

  • Built-in stand
  • Side cover
  • AC adapter
  • 4 AAA batteries

The Extech FM100 Formaldehyde Monitor is perfect for monitoring indoor air quality of areas affected by formaldehyde gas. It alternately displays formaldehyde concentration, air temperature, and relative humidity readings (cycles approximately every 6 seconds).

Formaldehyde is used in the manufacture of many industrial and consumer goods. Emissions from some of these items can rise when moisture and heat increase. These emissions are a contributing factor to Sick Building Syndrome, which may lead to itchy eyes and throat, as well as headaches and dizziness.