extech fm300 formaldehyde monitor

Extech FM300 Formaldehyde CH20 or HCHO Desktop Monitor Review

  • Posted on: 21 August 2015
  • By: Max

Today I am reviewing the FM300 from Extech. The FM300’s primary operation is to measure and display formaldehyde concentration, air temperature, and relative humidity readings with date (year, month, day) and time simultaneously.