Features 1、Combustible 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. 2、Visual & 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. 3、Adjustable 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. 4、Large LCD Display: Large screen with backlit, it can shows combustible gas concentration, temperature (°C/°F), 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. 5、Compact & Portable: The pen-type design is lightweight and compact, making it easy to fit into your pocket or toolbox for convenient carrying. Specification Specifications: Model: GN805 Material: ABS Sensor: Gas sensitive semiconductor Response Range: 50~1000ppm (methane) Sensitity: Approx. < 50ppm Adjustable Sensitity: S key toggle Warm-up Time: 30 seconds Response Time: ≤500ppm: about 5 seconds > 500ppm: about 2 seconds Alarm Method: Sound and indicator light Use Environment: 0℃~50℃ / 20%~80%RH Storage Conditions: -10℃~60℃ / 20%~80%RH Use Battery: 2 * 1.5V AAA batteries (Not included) Automatic Shutdown: No operation within 4 minutes, automatic shutdown Gas 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 * 1.15in Item Weight: 57.7g / 2.03oz Package Weight: 78g / 2.75oz Package Size: 18.4 * 3.5 * 3cm / 7.24 * 1.37 * 1.18in Package List Package List: 1 * Combustible Gas Detector 1 * Packaging Box 1 * User Manual (English)