• Dual Sensor Technology • Ionization Sensor – may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms.
• Photoelectric Sensor – may detect visible particles (associated with smoldering fires) sooner than ionization alarms.

• 9V Battery Operated – No wiring required. Provides continuous protection even during power outages.
• Hush® Button – Temporarily silences nuisance alarms for approximately 10 minutes (smoke must be present before Hush® is activated).
• Test Button – Simultaneously tests the unit’s electronics and verifies alarm operation.
• Tamper Resistant – Deters from tampering or theft.