The FM–801 formaldehyde meters' measurement range is from 20ppb (parts per billion) to 1ppm (parts per million), with excellent specified accuracy. And the monitor will actually display all the way down to 10ppb (with actual limits of detection below the display value, down to <5ppb). Display your readings in ppb or μg⁄m³ HCHO. These very low levels of detection are essential for Indoor Air Quality (IAQ) measurement of Formaldehyde, and are typically not achieved by alternative continuous measurement technology.
FM–801 formaldehyde meter is a portable, continuous measurement formaldehyde (HCHO) meter available from GrayWolf. Tests run in as little as 30 minutes. The unit 're–zeros' between 30 minute tests allowing for continuous monitoring⁄data–logging, and provides an output for real–time connection to most GrayWolf platforms.
Some key facts about this ground–breaking meter:
A reusable sensor cartridge employs the chemical reaction between formaldehyde and β–diketone in a porous glass. The yellowing that results from this reaction is measured via photoelectric photometry with accurate readings to <20ppb HCHO, without significant cross–sensitivity from typical background compounds, making it ideal for IAQ applications.
Model Name | FM–801 |
Detection Principle | Photoelectric Absorptiometric |
Detection Range | <20ppb to 1,000 ppb,< 25 μg⁄m³ to 1230 μg⁄m³ |
Accuracy | +⁄- 4ppb <40ppb, +⁄- 10% of reading ≥40ppb |
Resolution | 1ppb (standard display reads down to 10ppb, and above that at 1ppb increments) |
Concentration Units | ppb or μg⁄m³ |
Display | Digital LCD |
Sampling Method | Passive diffusion sampling |
Operating Temp. and RH | -10 to 40°C (14 to 104°F), 20 to 90 %RH(non–condensing) |
Sensor Shelf Life | 1 year from mfg. date (stamped on pouch). It is recommended that the sensor is not used >3 months from date pouch is opened and not at all if exposed to <10%RH when open |
Memory (base unit) | up to 250 sensors and 4500 data points |
Power Source | 2 x AA size batteries, or AC adapter |
Standard Accessories | Sensor cartridge x 5 pcs, carrying case, USB connection cable, AA size batteries, AC adapter, mini tripod⁄stand, WolfSense PC data transfer & reporting software |
Graph formaldehyde trend logs from an FM–801; singly or together with other parameters from any compatible GrayWolf platform
For more details please contact us here or visit GrayWolf Sensing Solutions, LLC