Features: 1. Portable detector to detect all combustible gases. 2. The long and flexible stainless steel probe can reach all areas. 3. Acoustic semiconductor probe and automatic rapid preheating. 4. Instant response, precise leak location and low battery indication. 5. Sound and light leak alarm indication, sensitivity is adjustable. 6. Small size and light weight, easy to carry and use. Features: The long flexible stainless steel probe allows you to reach more area.Sound and light alarm against combustible gas leaks. With gas leak degree indication and low battery indication. Adjustable sensitivity, adapts different detection requirements. Compact size, light weight, easy to carry and use. Specification: Model: AS8800L Sensor: semiconductor Detection gas: methane, ethane, propane, butane, alcohol hydrogen gas, natural gas, acetone, naphtha, sulfide, gasoline and volatile industrial solvent Sensitivity: adjustable, minimum 50 ppm (methane) Response time: Instant Warm-up time: less than 20s Continuous operating time: 9 hours (varies slightly with working conditions) Power supply: 3 x 1.5V AA batteries (NOT included) Product size: 158.8 66.2 Operating environment: 0 ~ 50 , 0 ~ 80% RH Storage environment: 10 ~ 60. 0 ~ 90% RH Package List: 1 Flammable Gas Detector Note: 1 . Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item. 2. Please allow slight error due to manual measurement. Thank you for your understanding.