Fire Detector with Photoelectric Sensor, Automated Testing for Home/Shop/Company (1 Piece)

【360 degree high sensitivity perception】: Unique structure design and advanced photoelectric labyrinth, real-time monitoring of smoke presence, detecting visible particles faster than ionization alarm.【Operational test button】: This smoke detector is equipped with a functional test button for functional testing. This can reset the alarm detector after an alarm or return it to monitoring mode.【High quality and easy installation】: The outer casing of this smoke detector is made of high quality ABS +PC plastic, environmentally friendly and flame retardant. Easy to install and easy to use.【Comprehensive protection for your safety】: Smoke detectors have a built-in buzzer. Once the danger of smoke and fire is detected, the red LED indicator flashes immediately and an alarm sound of over 80 dB sounds to quickly remind you and your family.