This professional portable combustible gas leak detector with visual leakage indicator, can detect various flammable gas leakage. Can be used to detect various flammable gas(Natural gas, Propane, Butane, Methane, Propanol, Ethanol, Ammonia, Steam, CO, Sulfurated hydrogen, Smoke, Gasoline Naphtha, Paint, Industrial solvent, Spraying fuel and Naphtha). Features: Portable detector for detecting all combustible gas, such as methane, ethane, propane, butane, alcohol, etc. Long flexible stainless probe reaches all areas with adjustable sensitivity for easy operation. Instant response, pinpoint leak position and quickly determine the flammable gas leakage location. With a headphone jack for using in noisy environment. Audio & visible leakage alarm indication against flammable gas leakage. Suitable for use in industry and household, such as factories and kitchens, etc. Audible semiconductor probe and auto fast warm-up with low battery indication. Specifications: Name: K Color: Grey Material: Plastic Detection Gas: Combustible Gas Sensitivity: 50ppm Methane (Adjustable) Alarm Mode: Sound Light Alarm Sensor Type: Low Power Semiconductor Warm-up Time: 60 seconds Response Time: 2 seconds Operation Cycle: Continual Operation Sensor Size: 390mm / 15.4inch Alarm limit: Lel 10% of Methane Battery Type: 4 * 1.5V AA Batteries (NOT Included) Operating Temperature: 050 Item Size: Approx. 177 * 68 * 42mm / 7.0 * 2.7 * 1.7in (L * W * H) Item Weight: Approx. 234g / 8.3oz Package Size: Approx. 24 * 14.6 * 5.5cm / 9.4 * 5.7 * 2.2in (L * W * H) Package Weight: Approx. 300g / 10.6oz Package List: 1 * Combustible Gas Detector 1 * User Manual