433MHZ Smoke Detector Wireless Smoke Fire Alarm Sensor Security Protection Alarm for Home Work with Sonoff RF Bridge

– Built-in high-sensitivity sensing technology, reliable and safe.

– 360 degrees smoke detection and alarm, no dead angle, reliable.

– Rotary detachable top cover design to facilitate cleaning and battery replacement.

– Full snap-in patented structure, simple installation, no need for debugging and wiring.

– Built-in 90 dB sound and light alarm reminder, effectively prompting people to evacuate.

– Support three alarms: independent sound & light flash alarm, wireless 433 transmission network alarm.

– Ultra-low-power microcontroller + photoelectric principle technology

Note 1: Needs to be used with SONOFF RF BRIDGE.

• Battery Not Included CR17450 lithium battery