Check the listing for details. Methane Detector with Range 0~10000ppm 0~20%LEL (LEL: Lower explosive limit). Condition: New. Listed at 160.00 USD. Methane Detector with Range 0~10000ppm 0~20%LEL (LEL: Lower explosive limit) Note: Battery not Included During The Shipping !!!Introduction:The gas leak detector can be used in the natural gas is leaked indoors and outdoors, where the gas is produced, stored, used, etc., such as chemical, petroleum, metallurgy, oil depot, LPG (Liquefied Petroleum Gas) station, gas transmission and distribution, etc. to detect the leakage and show the leaking concentration or explosion percentage with a digital display. This device can set two-level alarming value. The detector can rise the acousto-optic alarming when the detected concentration reaches the preset value. The meter’s function is powerful. It also can synchronously measure that time’s temperature and humidity when measuring methane gas. Technical indexes:Principle for sensor measurement: semi-conductive methodDetectable gas: methane gasMeasurement range: 0~10000ppm,0~20%LEL (LEL: Lower explosive limit)Resolution: 1ppm, 0.1%LELError: ±2%Response time: