Product Description
Photoelectric Sensor – Protects best on slow smoldering fires
Ionization Sensor – Protects best on fast flaming fires
Red LED – Flashes every 30-40 seconds to indicate that the smoke alarm is receiving power
Test Button – Tests unit's electronic circuitry, horn, and battery function
120V with Battery back up (9V battery included) – Protects even during power outages
Tamper Resist Locking Pin – Helps deter from theft or tampering
Low Battery Indicator – Smoke alarm will chirp in the event of a low battery
Twist-Off Mounting – For fast installation and easy, safe battery replacement