Features:          Long flexible stainless probe reaches all areas.      Sound and Light leakage alarm indication and adjustable sensitivity.      Instant response, pinpoint leak position and low battery indication.      Compact size, light weight, easy to carry and operate.      Portable detector for detecting all combustible gas (ethane, natural gas, propane, pentane, hexane, gas oil).      Specifications:          Color: Red + Black      Material: ABS Plastic      Detection Gas: Combustible Gas      Sensitivity: Variable, Minimum 50 PPM (methane)      Alarm Mode: sound and light alarm      Response Time: Instantaneous      Warm-Up Time: < 20 seconds      Continuous Operation Time: 9 hours(may vary with working conditions)      Probe Length: 35.5cm / 13.98 inch      Working Temperature: 0& 8451;~50& 8451;, Relative Humidity 0~80%      Storage Temperature: 10& 8451;~60& 8451;, Relative Humidity: 0~90%      Powered by: 3 * AA Batteries(Not Included)      Package Included:          1 x Combustible Gas Detector      1 x User Manual