High Precision Gas Leak Detector Made in Japan Sensor. HT60 gas leak detector can detect a large number of flammable gases, like natural gas, methane, propane, butane, ethane, coal gas, gas oil, gasoline, etc., with high sensitivity it can quickly and accurately pinpoint combustible gas leak. You can use it at home or your RV to perform regular safety checks on the gas pipes/ piping connection/ gas tank to reduce the risk of gas explosion and keeping your family and property safe.High & low sensitivity switchable The HT60 gas detector has high and low sensitivity settings, High and low sensitivity are switchable for different scenarios. Set high sensitivity to find small gas leaks. Set low sensitivity to locate the exact point of origin of gas leak. When the S button light is on, the detector is in high sensitivity mode; when the S button light is off, the detector is in low sensitivity mode. The high sensitivity mode by default when the device turns on.Visual & Audible Alarm The HT60 gas detector will send out a visual and audible alarm if any combustible gas is detected. alarm continuously beeps and LCD screen turns red when detecting gas leak. LCD display screen with a green backlight ensures clear visibility even in dim light conditions. It has low-battery indicator & Power-save mode, automatic power off after 5 minutes without operation or gas detection.Simple To Use Has an easy-to-understand interface, without complicated instructions, extremely simple to use. This portable gas detector powered by 2 pcs AAA batteries (included) with low-battery indicator and power-save mode. The device will automatic power off after 5 minutes without operation or gas detection, and the low battery indicator will display when battery voltage is lower than working voltage.Widely Use to Protect You Portable pen type design, easy to carry and operate, compact and lightweight, easily detect gas leaks in most hard-to-reach places. Widely used in detecting gas leak of RV, camper, kitchen, basement, gas stove, water heater and other household devices. Saves you from paying hundreds of dollars in diagnostics or wasting gas in an undetected leak. Safe and reliable gas leak detector for home