Battery Operated (9V Battery Included)
Photoelectric Sensor ?Advanced photoelectric sensor is
especially effective in detecting smoldering fires.
Test Button ?Tests unit? electronic circuitry, horn and battery
Red LED ?Indicates that the smoke alarm is operating
properly and alarm condition.
Low Battery Indicator ?Smoke alarm will chirp in the event of
a low battery.
365体育登录Up to 85dB sound level