Features: Engineering plastic for shell, drop-proof, waterproof, dust-proof and explosion-proof. Portable natural gas detector for detecting most combustible gas leak, such as Natural Gas, Propane, Methane, ,LNG, LPG, etc. Instant response, pinpoint leak position, whether in your home or in your RV. Audio visible & vibration leakage alarm indication. Compact size, light weight, easy to carry and operate. Long flexible metal probe reaches all areas. Widely Used In Detecting Your Basement, Kitchen, bathroom, wine cellar ,RV,Workspace, Gas Stove, Water Heater, Sewer etc. Specifications: Material: ABS Size: 200x70x25mm/7.9x2.76x0.98in Testing range: 0~10000umol/mol(ppm) Resolution: 1umol/mol(ppm) Powered supply: for DC 3.7V 2000mAh battery Package Includes: 1X Gas Leak Detector note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.