current item | |||
Alarm/Detector Features | |||
---|---|---|---|
10-Year Battery, Hush Button, Tamper Resistant | Hush Button, Tamper Resistant | 10-Year Battery, Hush Button, Tamper Resistant | 10-Year Battery, Hush Button, Tamper Resistant |
Alarm Sensor Type | |||
Photoelectric | Photoelectric | Photoelectric | Photoelectric |
Pack Size | |||
2 | 4 | 3 | 3 |
Battery Type Required | |||
Built-In | AA | Built-In | Built-In |
Alert Type | |||
Siren | Siren | Siren | Voice |