AC/DC COMBINATION IONIZATION SENSOR SMOKE AND CARBON MONOXIDE ALARM (601040)

2-in-1 combo provides protection from two hazards
Interconnects with both smoke and CO alarms
Different smoke and CO alarm signals to sound the appropriate warning
Reduces wiring requirements
Single button tests smoke and CO sensor
Alarm announces Fire, Fire or Warning, Carbon Monoxide along with 85 dB alarm Low battery chirp
Contractor-friendly installation
Two AA batteries included
5-YEAR LIMITED WARRANTY