FireAngel Optical Smoke Detector with 10-year battery

NEW 2022 MODEL! This professional FireAngel smoke detector uses the latest optical technology. Forget about changing batteries as this one has a 10-year battery life.
High Performance Optical Sensor: Quickly detects fires and is less prone to false alarms from cooking fumes.
10-Year Built-in Battery: No need to worry about battery replacements.
Silence Function: Silences false alarms for 10 minutes by pressing the test button. Automatically resets after 10 minutes if no smoke is detected.
Sleep Easy Function: Allows you to postpone low battery warnings for 8 hours.
High Performance Optical Sensor: Meets the highest fire safety standards. Differentiates between cooking fumes and real fires, significantly reducing false alarms.
Silence Function: Press the test button during an alarm to silence it for ten minutes. If it was a false alarm, the detector will return to normal operation after 10 minutes. If smoke is still present, it will alarm again; if smoke dissipates, it will revert to standby. (Use only when you are certain there is no actual danger)
Quiet Test Function: Press the test button once for a quiet test. Press twice in succession for an 85dB audible test (may damage hearing).
Easy Installation: The mounting plate is designed for convenient attachment. Screws and wall plugs are included. (Compatible with older FireAngel models' mounting plates; contact customer service for compatibility).
Sleep Easy Feature: When the battery depletes after 10 years, often at night, the detector will start emitting alerts every 4 hours.