Combustible Gas Detector Light Sound Alarm HD Color Screen Portable Gas Leak Tester with Lighting Item Type: Combustible Gas Detector Material: ABS Color: Black and red Measuring Range % LEL: 0-20%, PPM: 0-9999PPM Resolution: %LEL: 0-20.0%(0.1) PPM: 0-999PPM(0.1), 1000-9999PPM(1) Accuracy: ±10%F.S. (methane) Display Mode: Simulation bar and numerical display Sensitivity: 50PPM (methane) Alarm Mode: Display, sound and light alarm Automatic Zero Setting: Automatic zero setting during preheating (in clean air) Sensor: Semiconductor sensor Automatic Shutdown: 15 minutes (can be closed manually) Detection Gas: Acetone, acetylene, alcohol, ammonia, benzene, butane, ethanol, cyclohexane, gasoline, hexane, hydrogen, methane, naphtha, natural gas, paint diluent, propane, solvent, etc. Operating Environment: -10℃ to 50℃, maximum 80% relative humidity, indoor altitude <2000m Storage Environment: -10℃ to 50℃, maximum 70% relative humidity Display Size: Approx. 53x44mm/2.1x1.7in Battery: 1 x 3.7V lithium battery (built in) Capacity: 1000mAH (single battery capacity) USB Charging: USB micro interface (DC 5V 1A)