Long flexible stainless steel probe allows you to reach more area. Sound and light alarm against combustible gas leakage. With gas leakage degree indication and low battery indication. Adjustable sensitivity, adapt different detection requirements. Compact size, light weight, easy to carry and use. Features: Long flexible stainless steel probe allows you to reach more area.Sound and light alarm against combustible gas leakage.With gas leakage degree indication and low battery indication.Adjustable sensitivity, adapt different detection requirements.Compact size, light weight, easy to carry and use. Specification: Model: AS8800L Sensor: Semiconductor Detection Gas: Methane, Ethane, Propane, Butane, Alcohol Gas hydrogen, natural gas, acetone, naphtha, sulfide, gasoline and volatile industrial solvent Sensitivity: Adjustable, minimum 50ppm (methane) Response Time: Instantaneous Warm-up Time: < 20s Continuous Working Time: 4 hours (slightly varies with working conditions) Low Battery