X-Sense Heat Alarm with 10-Year Sealed Battery, LED indicator & 1 Pack\nProduct Details\n--Attention: Heat Alarm XH02 is not compatible with SBS50 base station and does not support interconnect function or any APP function\n--10-Year Promise of Safety: This heat alarm comes with a sealed lithium CR123A battery that lasts up to 10 years; gives you low-maintenance protection, and lasting peace of mind for your family\n--Class A1 Precision: Smart enough to ignore cooking smoke, but quick to catch real danger, no more nuisance and false alarms; thanks to a high-performance NTC thermistor for last, accurate heat detection\n--Convenience Design: Featuring one button with two functions, easily test your heat alarm or switch to silence mode with a single press; mute unnecessary alerts without turning it off, keeping your nights calm while your safety stays active\n--Always in the Know: Alerts you when it's time for the battery replacement or real-time status of your heat alarm; it has yoy