Features1Combustible Gas Leak Detector: GN805 is suitable for acetone, acetylene, alcohol, ammonia, benzene, ethanol, epoxy acetylene, gasoline, hexane, hydrogen, methane, liquefied petroleum gas, natural gas, paint thinner, propane, solvents, etc. It assists you in protecting the safety of your home and property anytime, anywhere.2Visual & Audio Alarm: The gas leak finder has a red LED light and buzzer, when it senses the combustible gas, the red LED light will flash, the buzzer will sound the alarm, when the sensed concentration of combustible gas is higher, the red light will flash and the sound alarm will be more urgent.3Adjustable Sensitivity: Users can adjust the sensitivity of the detector according to different environments and needs to ensure that it can adapt to various complex gas environments.4Large LCD Display: Large screen with backlit, it can shows combustible gas concentration, temperature (CF), and low power prompt. To save power, the detector will automatically shut down and the screen goes out when it has not operated or detected flammable gas for 4 minutes.5Compact & Portable: The pen-type design is lightweight and compact, making it easy to fit into your pocket or toolbox for convenient carrying.SpecificationSpecifications:Model: GN805Material: ABSSensor: Gas sensitive semiconductorResponse Range: 50~1000ppm (methane)Sensitity: Approx. < 50ppmAdjustable Sensitity: S key toggleWarm-up Time: 30 secondsResponse Time: 500ppm: about 5 seconds> 500ppm: about 2 secondsAlarm Method: Sound and indicator lightUse Environment: 0~50 20%~80%RHStorage Conditions: -10~60 20%~80%RHUse Battery: 2 * 1.5V AAA batteries (Not included)Automatic Shutdown: No operation within 4 minutes, automatic shutdownGas Detection (sector list): acetone, acetylene, alcohol, ammonia, benzene, ethanol, epoxy acetylene, gasoline, hexane, hydrogen, methane, LPG, natural gas, paint thinner, propane, solvents, etc.Item Size: 180.8 * 26.1 * 29.2mm 7.12 * 1.02 * 1.15inItem Weight: 57.7g 2.03ozPackage Weight: 78g 2.75ozPackage Size: 18.4 * 3.5 * 3cm 7.24 * 1.37 * 1.18inPackage ListPackage List:1 * Combustible Gas Detector1 * Packaging Box1 * User Manual (English)