First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack
$138.99
Sale price
$138.99
Regular price
$177.91
- Hardwired CO smoke alarm features battery backup for constant monitoring
- Can connect to other compatible BRK or First Alert CO smoke detectors
- Lights indicate if the alarm is for smoke or for carbon monoxide
- Single test silence button for simple operation
- Side-load battery compartment for convenience