Deals on brk electronics sc9120b hard wired t3 smoket4 carbon monoxide alarm with sl177 strobe

BRK Electronics SC9120B Hard Wired T3 SmokeT4 Carbon Monoxide Alarm...
$424.87
BRK Electronics SC9120B Hard Wired T3 SmokeT4 Carbon Monoxide Alarm...
$165.00
BRK SC9120B SMOKE/CARBON MONOXIDE ALARM W/SL177 STROBE- HARDWIRE W/BATTERY- T3
$139.50