Description: Backlight Hint: Two-color backlight prompt, no leakage display green screen, leakage display red screen. Sound and Light Prompt: Sound and light dual prompts, when flammable leakage is detected, the instrument buzzes and the concentration analog bar increases. Accurate: Using premium - sensitive semiconductor sensor, high precision, more accurate measurement. Multi Use: Convenient for users to safely detect and test a variety of types, easily meet different test requirements. Types of detectable gases: acetone, acetylene, alcohol, ammonia, benzene, butane, ethanol, oxide, gasoline, hexane, for hydrogen, methane, naphtha, natural gas, paint thinner, propane, solvent. Specification: Color: As Shown. Material: Plastic. Size: Approx. 16.2x4.5x3 cm/6.38x1.77x1.18 inch. Battery: 2 * 1.5V AAA Alkaline Battery (not Included). Display: HT59 Concentration Bar Indicator. Test Range: 50-1000ppm. Detection Gas: Combustible Gas. Accuracy: ≤10% F-S(methane). Sensitivity: < 50ppm (methane). Response Time: < 2 Seconds. Preheat Time: About 30 Seconds. Alarm Mode: Sound and Light Alarm. Automatic Shutdown: Yes. Low Power Indicator: Yes. Test Gases (partial List) : Acetone, Acetylene, Alcohol, Ammonia, Benzene, Butane, Ethanol, Oxide, Gasoline, Hexane, for Hydrogen, Methane, Naphtha, Natural Gas, Paint Thinner, Propane, Solvent, Etc. Reaction Time: ≤500ppm: About 5 Seconds; > 500ppm: About 2 Seconds. Working Conditions: 0℃ to 50℃/20%RH to 80%RH. Storage Conditions: -10℃ to 60℃ / 20%RH to 80%RH. Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Leak Detector(with 1 Piece User Guide).