The FM300 is a desktop formaldehyde (CH2O or HCHO) Monitor which measures Formaldehyde concentration, Air Temperature and Humidity and displays them simultaneously on an LCD monitor. The FM300 calculates statistical weighted averages of TWA (8-hour Time Weighted Average) and STEL (15-minute Short Term Exposure Limit) and features a Min/Max value recall function, CH2O Calibration function in fresh air and Internal memory for manually storing (99 readings). This meter is CE certified and has a year warranty. Product comes complete with a universal AC adapter, multiple plugs and a user's manual.

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