Feature 1Wide Application: This gas detector is widely used in gas pipeline detection, domestic gas prevention, metallurgical field, tunnel mining operations, oil and gas extraction field, etc. 2Detect Various Gases: The gas leak detector is suitable for locating various combustible gases such as methane, natural gas, propane, ethane, butane, fuel oil, alcohol, kerosene, gas, gasoline, etc., and locating leak points quickly and accurately. 3Easy To Use: The gas detector needs to warm up for 30 seconds after it is turned on, and it will detect automatically after the warm up is completed. If the relevant gas is not detected within five minutes, the instrument will automatically shut down. 4Sound And light alarm function: This gas detector has a visual LED light and buzzer alarm. The higher the concentration of the relevant gas, the higher the buzzer frequency and the more LED lights, which makes it easy to quickly locate the leak location. 5ABS Housing: The gas detector housing is made of excellent ABS engineering plastic material, composite antislip, with impact resistance.Item Type: Gas DetectorModel: HT66Material: ABSBattery: 1.5V AAA Battery x 2 ( Shipped Without Battery )Use: Gas Concentration DetectionBasic Parameters:Sensor: Gas Sensitive SemiconductorDetection Range: Approx. 50~1000PPM (methane)Response sensitivity: Approx. <50ppm (methane)Warm Up Time: Approx. 30 SecondsResponse Time:<=500PPM: Approx. 5 Seconds, >500PPM: Approx. 2 SecondsAlarm Method: Indicator And BeepOperating Environment: Approx. 0~50C / 32-122, 20~80% RHStorage Environment: Approx. -10~60C / 14-140, 20~80% RHDetecting Gas: Acetone, Acetylene, Alcohol, Ammonia, Benzene, Butane, Ethanol, Ethylene oxide, Gasoline, Hexane, Hydrogen, Methane, Naphtha, Natural gas,Propane, Solvent, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Gas Detector1 x Manual