[Visual & Audio Gas Alarm]When the natural gas or combustible gas concentration leaks reach a 53%LEL, this gas detection alarm will sound an 70dB alarm and display the dangerous gas concentration level, the alarm sounds and the red light flashes. When Carbon monoxide reaches set concentration, the alarm sounds and the red light flashes.[Powerful Quality & Functionality]Natural gas detector adopting high-quality semiconductor calefaction type sensor. More accurate response times to gas exposure, avoiding the possibility of false alarms. LCD display of combustible gas concentration, plug and play, the LED display concentration changes, and an alarm of 70 dB or more issues. Protect your family and leave you worry-free.[Detect Various Flammable Gases]Gas detectors for home natural gas and carbon monoxide, Suitable for detecting methane, natural gas, propane, butane, ethane, coal gas, gas oil, gasoline, toluene, sewer gas, alcohol, ketones, and other flammable gases.Easy to install CO and explosive gas alarm, which can be used by plugging directly into the power socket to detect leaked gas. The system warm-up time is about 3 minutes. During this time period, the number counts down 180 seconds, you need to wait for the display to show 0P (the system enters the working state) before it can be tested normally. The gas detector does not include batteries and needs to be purchased separately for use in the event of a power outage or socket failure at home.[Make Safety a Top Priority!]Unchecked propane gas leaking into your sleep space can leave you sick or worse. This gas leak detector for home lets you know the moment there is a problem, so you'll know when it's time to react and fix a problem. Be worry free and know you did everything to keep your family safe from fires or explosions caused by dangerous gas leaks from your stove, furnace, water heater, washing machine, fireplace, kitchen, garage, or grill.