Monitoring Equipment

The Formaldemeter htV-m offers precise 3-parameter monitoring for low levels of formaldehyde vapours under extremes of temperature and humidity.

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The Formaldemeter is the perfect accessory to the Foramaflow Vaporizer range. The Formaldemeter htV-m can precisely measure formaldehyde concentrations in parts per million and mg/m3 over a wide range of temperature and humidity. Fast and easy to use, pressing a single button gives an immediate indication of concentration levels. The Formaldemeter is reliable and simple to calibrate. The hand held device has a built in memory and real time clock enabling the htV-m to log all 3 parameters and corresponding times, allowing improved monitoring and analysis opportunities.

The Formaldemeter htV-m can also be used as a continuous monitor. A PC can automate the sampling and log data at specific times by a direct or wireless connection. All download software is supplied with unit.

Sampling Method:

10ml snatch-sample of air taken by internal pump.

Sampling Frequency:

2 minutes in normal IAQ conditions.

Response Time:

60 Seconds in 'high accuracy' mode, approx. 8 seconds in 'lower accuracy' mode.

Operating Range:

0-40 Deg C, 15-90% RH


150 x 80 x 34mm ABS plastic case. Padded accessory case 313 x 265 x 77mm.

Concentration Range:

0-10ppm as standard (0 - 12.3mg/m3 at 25 Deg C) Extended range available on request.


94% of all instrument readings meet the NIOSH criteria for an acceptable method when measuring 0.3ppm of formaldehyde over a relative humidity range of 25 - 70%.


By user with supplied calibration standard or by original manufacturer.