Brand: FORENSICS DETECTORSModel: FD-90A-CO2User Manual: Click HereBlog Article: Click Here Features: ⚛️ DETECT: Single-gas detector for carbon dioxide, 0 - 100% with 0.1% resolution. Comes FACTORY-CALIBRATED. 🔋ACCURACY: Dual Beam NDIR sensor with error: ≤ 5% F.S. and response time: < 30 sec. Zero and span calibration options. 🎆 ALARMS: Adjustable audio, visual, and vibration alarms alert when preset levels are reached. Alarms trigger the record count function. 💪 STRONG: Shockproof, water-resistant, dust-proof, and explosion-proof. 🕵️ TRUSTWORTHY: 1-year limited warranty. Arrives with a signed and dated calibration certificate. Details: The professional carbon dioxide (CO2) detector by FORENSICS is the best in its class with advanced features. Constructed for professional industrial technicians who are looking to detect CO2 beyond basic ambient measurements. Perfect CO2 measurement in tanks, storage rooms, fermentation processes, beer, and industrial processes. For those seeking a lower range, we recommend our 0-10% CO2 Analyzer. For those requiring ppm level for indoor air quality, we have our 0-5000ppm CO2 Analyzer. Included: CO2 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 (CO2)Calibration Gas Regulator (C10)Tubing Other Accessories (sold separately): Bump Gas (CO2) Pump and ProbeGas Detector Hard CaseGas Detector PouchGas Detector Stand Specifications Carbon Dioxide (CO2) Detection: 0 - 100% with 0.1% resolutionRecommended Calibration Period: 12 monthsGas Sensor Type: NDIR Gas SensorGas Sensor Life: > 5 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 SourceCalibration Location (Europe): Athens, GreeceCalibration Standard (Europe): European NPL Traceable Gas Source