Hush® Feature – Temporarily silences nuisance alarms

Test Button – Tests unit's electronic circuitry, horn, and battery function

Tamper Resist Locking Pin – Helps deter from theft or tampering

Low Battery Indicator – Smoke alarm will chirp in the event of a low battery

Battery Operated (9V battery included) – Protects even during power outages

Ionization Sensor – Protects best on fast flaming fires