GRAYWOLF FM-801 Formaldehyde Multimode Monitor

The GRAYWOLF FM-801 Formaldehyde monitor uses a highly accurate colorimetric sensor cartridge for short-term sampled measurement and/or for continuous monitoring/trend logging. The unit interfaces to GrayWolf’s AdvancedSense for simultaneous display and logging

Contact Us

  • Features :
  • Low level detection down to 20 ppb,
  • Easy-to-use reusable colorimetric sensor cartridge,
  • Short term and continuous monitoring,
  • Unit interfaces with Advanced Sense for display and logging


• Detection Principle : Photoelecric Absorptiometric
• Range: <20 ppb to 1,000 ppb : < 25 μg/m3 to 1230 μg/m3
• Accuracy : ± 4 ppb <40ppb : ± 10% of reading > 40 ppb
• Resolution : 1 ppb
• Sampling method : Passive diffusion sampling
• Operating Temperature : -10°C to 40°C
• Memory : 4500 data points
• Power : 2 x AA size Alkaline batteries or AC adapter.

Standard Accessories:

• Sensor cartridge
• USB cable
• Cable to connect to AdancedSense
• AC Adapter
• Mini tripod/stand


New Research on COVID-19 Aerosol Transmission

This week, a new study came out showing COVID-19 is getting better at spreading through the air. This should be on the radar of anyone who operates ...

Are Electric Vehicles Really Greener

Are electric vehicles really greener? We did the math. ...

New Alberta COVID Business Guidelines

The COVID-19 pandemic continues to make headlines, as case counts rise once again. In some cases, this has caused businesses to delay a return to in...


We’re Here to Help!

    Copyright©2019, Gasonic. All rights reserved.