6-Year Battery-Powered Natural Gas Alarm

6-year battery and product service life Battery-Powered device enables installation close to ceiling (where natural gas is more accurately detected, as natural gas is lighter than air and rises towards the ceiling) without the need for a cosmetically displeasing cord 10% LEL gas alarm threshold alerts you to emergencies much sooner with 11 minutes more alert time on average than a 25% LEL gas alarm threshold, validated by Fire & Risk Alliance Voice Alerts in English & Spanish announce warnings of natural gas leak Virtually eliminates nuisance alarms caused by harsh household chemicals, such as laundry detergent, disinfectant spray, aerosol hairspray, furniture polish, etc. validated by GTI testing Micro-Electro Mechanical System (MEMS) sensor technology provides accurate and faster Methane gas detection than other sensors. Includes internal self-diagnostics. No calibration needed Operates in temperatures ranging from 32°F to 122°F and a humidity range of 5% to 95% RH, non-conde