Features:
* Exclusive smoke intelligent algorithm, high sensitivity, no false alarm, strong anti-interference.
* Anti-light, Moth-proof, Dust-proof, moisture-proof, High stability. Low power CMOS microprocessor, effectively extend battery lifespan.
* Once triggered, the red LED will flash with loud high volume alarm sound, louder than 80d B. Test Key: With manual test, manual reset function.
* Perfect full buckle patented structure, anti-dismantle bracket, easy to install, clean & replace battery. No wiring needed.
* Low Battery Alarm: When battery with low voltage, sound prompts to remind users replace battery.