First Alert Smoke Alarm Detector with Battery Backup

First Alert Smoke Alarm Detector with Battery Backup in $11.99 with FREE shipping on eBay.

Product Features:

• Quantity 48 – 9120B hardwired smoke alarms with battery backup; bulk pack with individual packaging
• Tamper resistant locking pins, single button silence/test and loud 85dB alarm
• 120-Volt AC power with 9-Volt battery backup (included) to keep alarm functioning during power outage
• Open mounting design for easy installation with side load battery compartment for quick replacement and
• interconnectable up to 18 units (12 smoke, 6 CO/heat/relay)
• 10-Year limited warranty