Designed to help promote household safety, the First Alert 9120B hardwired smoke alarm with battery backup can provide a vital early warning of fire. This hardwired smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast-flaming fires.
- 120 V hardwired smoke alarm wires directly into your home's electrical system
- Ionization smoke sensor is optimal for detecting fast flaming fires
- Gasket-less mount system for hassle-free installation
- Easy-to-access battery drawer
- Can integrate with up to 12 other first alert or BRK hardwired smoke detectors
- Battery backup for detection during a power outage
- Tamper-resistant locking pins
- Interconnectable up to 18 units such as 12 smoke and 6 CO/heat/relay
- Emits T3 pattern
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Owners/User Manual
https://assets.unilogcorp.com/187/ITEM/DOC/FIRST_ALERT_100078475_Owners_User_Manual.pdf