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

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  • 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


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