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Extech FM100  

Extech FM100: Formaldehyde (CH2O or HCHO)

Indoor Compact Formaldehyde Monitor with Tilt Leg Stand

The FM100 is an indoor compact formaldehyde monitor with a tilting leg stand. Alternately displays Formaldehyde concentration, Air Temperature, and Relative Humidity readings which cycles approximately every 6 seconds. The FM100 features both audible and visual alarms, "ZERO" Re-Calibration function, Manual Temperature and Relative Humidity Compensation (adjustable), CH2O Calibration function in fresh air and a low battery indicator. Product is CE certified and has a year warranty. Complete with universal AC adaptor (including US, EU, UK, and AU plugs), user's manual and 4 AAA batteries.