This portable combustible gas detector can detect the leakage of gases indoors with its 30cm slim goose neck sensor, and it will alarm if gas leaks, which is widely used in detection of gas piping, propane filling station, oil leakage in the cabin, fuel leakage and other environmental monitoring. Features: [Compact Structure] Proper size & light weight, support one-hand operation, portable to use and carry. [High Sensitivity & Quick Response & High Accuracy] Adopted professional sensor and manual sensitivity adjustment, it can fast detect slight gas leakage and identify the location of leak source, ensuring personal and construction safety. [30cm Long Probe] The flexible goose neck probe enables it to stretch out and draw back freely especially in a narrow place. [Sound & Light Alarm] Audible and visible leakage alarm indication. [Wide Application] Applicable to natural gas, exhaust gas, coal gas, marsh gas and other combustible gases; widely used in detection of gas piping, propane filling station, oil leakage in the cabin, fuel leakage and other environmental monitoring. Specifications: Material: ABS Color: Red / White (Optional) Power Supply: 3 * 1.5V AA Alkaline Battery(Not Included) Battery Life: Continuous use for 4 hours (slightly changed with working state) Sensitivity: 50PPM methane Preheating Time: