Features:
* Exclusive smoke intelligent algorithm, high sensitivity, no false alarm, strong anti-interference.
* Anti-Light, Moth-proof, Dust-proof, High stability. With long standby life, effectively extend battery lifespan.
* Once triggered, it will flash with green light & loud high volume alarm sound, louder than 110d B.
* Perfect full buckle patented structure, anti-dismantle cover, easy to install, clean & replace battery. No wiring needed.
* Low Battery Alarm: When battery voltage is lower than 6.8V, sound prompts to remind users replace battery.