? 【Parameters:】 Material: ABS Gas-sensitive semiconductor sensor Response range: > 50 ppm (methane) Heating time: about 30 seconds Response time: approx. 5 seconds (< 500ppm), approx. 2 seconds (>500ppm) Alarm mode: visible and audible Operating conditions: 32 122 / 20 80% relative humidity Storage conditions: 14 140 / 20 80% RH Power supply 2 pcs, 1,5V, AAA batteries (batteries not included) 【List of things to pack:】 1 x Gas Leak Detector 1x instruction manual ? 【Multifunctional Gas Leak Detector:】 It can detect methane, natural gas, propane, ethanol, Gas, propane, benzene, ethylene oxide, Hexane, n-butane, ethylene and most combustible gases To reduce the risk of gas explosion and protect your safety. ? 【High sensitivity and fast response:】 The measuring range of the gas detector is 50-1000 PMM It has two sensitivity settings Fast response within 5 seconds High and low sensitivity can be switched according to different scenes It allows users to quickly and easily detect gas leaks in hard-to-reach areas near equipment. ? 【Sound and light alarm:】 Continuous 85dB audible alarm when gas leak is detected LCD LED will change kolor to red Easy to read even in the dark With low battery indicator and power saving mode If not ma operational and measurement signal Gas tester will turn off automatically after about 10 minutes ? 【Hand pen design:】 Compact design with power button and sensitivity button Let customers operate the device with one hand With rubber surface to avoid slipping pen design Easy to carry and use ? 【Widely used:】 Place in places where you suspect a leak may occur Wait for the device to display the current gas reading Widely used in basement, RV, factory workplace, gas stove, Detection of gas leaks from household appliances such as water heaters ensure safety Safe and reliable gas leak tester