Features
* PI9000 (442007)
* Ionization Sensor – Protects best against fast flaming fires.
* Photoelectric Sensor – Protects best against slow smoldering fires.
* Battery Operated (9V battery included) – Provides continuous protection even during power outages.
* Tamper Resistant – Deters from tampering or theft.
* Hush Feature – Temporarily silences nuisance alarms.
* Red LED – Flashes every 30-40 seconds to indicate that the smoke alarm is operating properly.
* Test/Reset Button – Tests smoke alarm circuitry and horn.
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