Deals on brk electronics 9120b hard wired t3 smoke alarm with backup

3 Pack BRK Smoke Detector & Alarm AC Powered 9120B, With Battery Backup,
$40.99
BRK SC9120B SMOKE/CARBON MONOXIDE ALARM W/SL177 STROBE- HARDWIRE W/BATTERY- T3
$139.50
BRK SC9120B COMBO SMOKE/CARBON MONOXIDE ALARM-HARDWIRED
$59.89