Brand: FORENSICS DETECTORSModel: FD-90A-HCHOUser Manual: Click Here Blog Article: Click Here Features: 🗽 ACCURATE: Formaldehyde (HCHO) gas detector, 0 - 10 ppm with 0.01 ppm resolution. 🚄 DETECT: Electrochemical cell sensor with error: ≤ ± 5% F.S. and response time: < 30 sec. Zero and span calibration options. Comes factory-calibrated. 🎆 ALARMS: Adjustable audio, visual, and vibration alarms alert when preset levels are reached. 💪 STRONG: Shockproof, water-resistant, dustproof, and explosion-proof with belt clip. 🕵️ TRUSTWORTHY: 1-year limited warranty. Arrives with a signed and dated calibration certificate. Details: A professional formaldehyde (HCHO) gas detector by FORENSICS with advanced features, comes factory-calibrated to detect formaldehyde gas. Formaldehyde is a colorless, strong-smelling gas often found in aqueous (water-based) solutions. It is also used to manufacture many products such as chemicals, particleboard, household products, glues, permanent press fabrics, paper product coatings, fiberboard, and plywood. The OHSA permissible exposure limit (PEL) for formaldehyde in the workplace is 0.75 ppm measured as an 8-hour time-weighted average (TWA). OSHA also defines a short-term exposure limit (STEL) of 2 ppm, the maximum exposure allowed during a 15-minute period. Included: HCHO gas detector, belt clip, sling, user manual, USB charging cable, calibration cover, and certified calibration certificate. Calibration Options: Calibration Service by Forensics DetectorsCalibration Tutorial (DIY) Calibration Kit (DIY sold separately): Calibration Gas (Surrogate Gas 10 ppm SO2: 8 ppm HCHO is used for calibration)Calibration Gas Regulator (C10)Tubing Other Accessories (sold separately): Pump and ProbeGas Detector Hard CaseGas Detector PouchGas Detector StandGas Sensor Replacement (CH2O) Specifications Formaldehyde (HCHO) Detection: 0 - 10 ppm with 0.01 ppm resolutionRecommended Calibration Period: 12 monthsGas Sensor Type: Electrochemical Gas SensorGas Sensor Life: 2 - 3 yearsError: ≤ ± 5% F.SResponse Time: < 30 secIndicators: LCD indicates the time, concentration, internal temperature, and battery level Alarm: Indication of alarm, fault, and low voltage with LED, sound, and vibrationStore / Operating Temp: 0°F - 122°FStore / Operating Humidity: 24 hoursCharging Time: 3 hoursExplosion Rating: ATEX certified Ex ib IIC T4 GbWeight: 5 oz / 140 g (including battery)Dimensions: 4.3 x 2.3 x 1.7 inchesCalibration Location (USA): Los Angeles, California, USACalibration Standard (USA): USA NIST Traceable Gas Source Calibration Location (Europe): Athens, GreeceCalibration Standard (Europe): European NPL Traceable Gas Source
