[Portable Gas Leak Detector]This portable MAYILON gas leak detector can detect a large number of flammable gases, like methane, natural gas, propane, butane, ethane, coal gas, gas oil, gasoline, toluene, sewer gas, alcohol, ketones, carbon monoxide and more. As the concentration goes up, the audible alarm beep more frequently and the scale add up. Can detect combustible gas between 50 and 10000 ppm. [High & Low Sensitivity Adjustable]High precision gas sensor for accurate and reliable gas leak detection, fast response time less than 5 seconds. High and low sensitivity are switchable for different scenarios. Set high sensitivity to find small gas leaks. Set low sensitivity to find larger explosive gas leaks. This handheld gas leak detector allow users with the ability to quickly and easily detect combustible gas leaks in most hard-to-reach places around appliances. [Visual & Audible Alarm]This MAYILON gas analyzer pen will send out a visual and audible alarm if any combustible gas is detected. Alarms continuously with 85dB tone and LCD light turns red when detecting gas leak. LCD display with green backlight ensures clear visibility even in dim light. It has a low-battery indicator (batteries not included). Power-save modes, auto power off after about 10 minutes if there are no operation and measurement signal. [Wide Application ]Take this handheld detector in the area where you think there might be a leak and wait for the device to display the current gas levels. The combustible propane detector widely applied with combustible gases, mists and residues, for the detection of flammable gases leaks, such as gas pipelines, propane tank stations, cabin leaks, exhaust gas and fuel leaks. Handy Gas Leak Detector & Easy To Use,MAYILON Portable pen type design, compact and lightweight, easy to carry and operate. Material: ABS Color as shown<