Advanced Environmental Instrumentation Low Limit of Detection (L.O.D.) Formaldehyde Measurement Formaldehyde Meter The FP-31G is a highly sensitive portable gas detector specific for formaldehyde detection. The FP-31G has a direct readout of the formaldehyde measurement on an easy-to-read LCD display. The unit is capable of detecting very low levels of formaldehyde, suitable for Indoor Air Quality (IAQ) applications where accurate low L.O.D.s are essential, yet can also measure up to higher toxic gas exposure levels with a quick test. Detection Ranges 30 minute sample 0 - 0.4 ppm (0.005 ppm/digit) 15 minute sample 0 - 1.0 ppm There are no known interfering gases (a significant problem for most other sensor technologies at low L.O.D.s), as shown on the chart on the reverse side of this brochure. Portable base unit utilizes photoelectric photometry to read the absorbance change that HCHO induces in the sensor. • Simple operation • Built-in sample draw pump • Easy-to-read LCD display • Self-diagnosis • Direct digital readout • Colorimetric detection tablet method GRAYWOLF SENSING SOLUTIONS Ph. 1-203-402-0477 • No false readings from interfering gases Email: Salesteam@ GrayWolfSensing.com Website: www.GrayWolfSensing.com Detection (test) Tablet • Operates on 4 AA alkaline batteries Measurement Principle Photoelectric photometry method which utilizes colorimetric tablets for detection. A tablet is placed into the instrument, and then a test area air sample is pumped onto the tablet for either a 15 minute or a 30 minute period. If formaldehyde is present, it will cause the chemically impregnated tablet surface to darken or stain. The magnitude of the stain directly correlates to the level of formaldehyde in the air. The stain darkness is read by an optical sensor in the FP-31G, and then the instrument calculates the formaldehyde concentration, displayi

Measure Smart Report Efficiently Formaldehyde Meter Gas Inlet Specifications Model Name Detection Range Detection Principle Photoelectric photometry Detection Method Colorimetric tablet method (accumulating measurement) ± 20% of reading or ± 5% of full scale (whichever is greater) Sampling Method Sample drawing with built-in pump Up to 99 readings (automatic recording at the completion of measurement) Failure of light source and light receiver, low battery voltage, pump failure, system trouble Power Source 4 x AA size alkaline batteries Continuous Operation Approximately 12 hours (with no backlight,...