Description Overview GAOTek HF Handheld Industrial Single Gas Detectors are widely used in Petrochemical, Gas, Municipal firefighting, Sewage treatment, medical and health care, smelting, food refrigeration, Dangerous chemicals storage and other industrial manufacturing sites requiring explosion prevention and poisoning prevention, home safety and protection, Traffic regulation and security areas etc. Features Large LCD display Adjustable low and high alarm level Calibration points adjustable High concentration protection for combustible gas sensor Fault diagnoses for the combustible gas sensor Low voltage alert Real time clock display Replaceable sensor module Two level three types of alarm (audible, visual, vibrating) Data uploading (optional) STEL and TWA alarm for toxic gases Intrinsically safe Technical Specifications Measuring Gas HF Measuring Range 0 ppm to 10 ppm Measuring Type Diffuse Naturally Response Time T90 <30 s (LEL, CO, H2S) T90 <20 s (Oxygen) T90 <120 s (NH3, HCL) T90 <60 s (other toxic gases) Display LCD Screen Audible ≥80 dB at 1 m Alarm Method Visual, Audible and Vibrative alarm Battery DC 3.7 V 1300 mAh Lithium Battery Working Temperature Toxic Gases: -4 °F to 122 °F (-20 °C to 50 °C); Combustible: -40 °F to 158 °F (-40 °C to 70 °C) Working Humidity <95% RH (no condensation) Housing Rubber Enclosure Standard Accessories Operation Manual, Calibration Cap, Charger, Screwdriver Optional Function Data Upload Through USB Cable Operating Life Toxic Gases: ≥300 h per Charge; Combustible: ≥8 h per Charge Event Log 2000 events Ingress Protection IP65 Approval Ex ia IIC T3 Dimension 4.09 in x 2.40 in x 1.22 in (104 mm x 61 mm x 31 mm) Weight About 0.30 lb (140 g)
