Gas Leak Detector Portable Handheld Low Consumption Combustible Gas Leak Tester with Dual Alarms1Good Performance: This handheld combustible gas detector has sensitive performance, with low power consumption and long service life. 2Dual Alarms: This gas leak detector has dual alarms, when a combustible gas leak is detected, the machine will emit a beeping sound and alarm and the display will have a red alert. 3Excellent ABS Material: This natural gas detector is made of excellent ABS material, which is scratch resistant and impact resistant, not easy to be warped and has good durability for long time working. 4Easy To Operate: This portable gas tester is easy to operate, you just need to press the power button to turn on the device, wait for 30 seconds to warm up before using it, and long press the power button to turn off the device. 5Compact And Portable: This handheld gas analyzer is small in size and light in weight, which makes it very convenient to carry around and use.