This gas tester is more convenient and practical, can support long time using. You can make reasonable processing or take effective prevents measures according to the test result. It can detect many kinds of gases, like methane, natural gas, , etc. Features -Color:Black -Material:ABS -Size:18.00X2.00X2.00cm/7.07X0.79X0.79in -Measurement accuracy: ±10% -Voltage: 1.5v -Power supply: 1.5v AAA battery (not included) -Detecting Gas: Gas -Warm- :Approx. 30 sec -Display:LCD -Alarm Mode:Sound and Light -Feature: , Auto , Indication -Operating Temperature: 0~50°|20-80%RH -Detects a large number of flammable gases, like methane, natural gas, , butane, ethane, coal gas, and more. -High and low sensitivity are switchable for different scenarios, sound and light leakage alarm indication. -It has a low-battery indicator, power-save design, auto after about 10 minutes if there are no operation. -Pen type design,easy to carry and operate, you can operate the natural device with one hand. -Widely used in detecting basement, RV, factory workspace, gas stove, water etc. to secure safety. Package list: 1 x gas detector