Features1High Accuracy Digital Display: Real time display of combustible gas concentration, accuracy higher than the industry standard, to ensure your safety. 2Portable Design: Small and lightweight, can be carried around, easy to use in the home, construction site and outdoor activities. 3Natural Gas and Gas Detection: Can be used to detect natural gas and gas leaks to prevent accidents. 4Buzzer Audible and Visual Alarm: When combustible gas is detected, a buzzer and flashing alarm will be issued to remind you to take measures in time. 5Long Service Life: The use of ABS material, long service life, durable, you can use for a long time to avoid frequent replacement.SpecificationItem Type: Gas Leak DetectorWeight: 95g/3.35ozMaterial: ABSSensor: gas sensitive semiconductorDetection Range: 300-10000PPMPreheating Time: about 30 secondsReaction Time: 500PPM: about 5 seconds, > 500PPM: about 2 secondsAlarm Mode: analog bar display, buzzer, vibration (vibration function can be selected according to the model)Operating Conditions: 0-50 20-80%RHStorage Conditions: -10-60 20-80%RHBattery: 2x1.5V AAA alkaline battery (shipped without battery)Package List1 x Gas Leak Detector 1 x Screwdriver 1 x Instructions