Features: Portable detector for detecting all combustible gas.Long flexible stainless probe reaches all areas.Audible semiconductor probe and auto fast warm-up.Instant response, pinpoint leak position and low battery indication.Audio & visible leakage alarm indication and adjustable sensitivity.Compact size, light weight, easy to carry and operate.Specifications: Detection Gas: Combustible GasSensitivity: Variable, Minimum 50 PPM (methane)Alarm Mode: sound alarm and light alarm Response Time: Instantaneous Warm-Up Time: Less than 20 Seconds Battery Type: 3 x AA 1.5V Alkaline Batteries (NOT Included)Duty Cycle: 3 YearsContinuous Operation Time: 9 hours(slightly vary with working condition)Probe Length: 35.5cm / 13.98inOperating Temperature: 0~50, Relative Humidity 0~80%Storage Temperature: 10~60, Relative Humidity: 0~70%Material: plasticcolour: red blackPackage Contents: 1 x Gas DetectorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.