First Alert 1046848 Smoke Alarm, Ionization Sensor, 85 dB, Alarm: Audible, Visual, White sanding A water-based

A water-based

It changes to red and an audible tone sounds when voltage is detected

Heated hand grips

Hose Capacity: 175 ft

First Alert 1046848 Smoke Alarm, Ionization Sensor, 85 dB, Alarm: Audible, Visual, White sanding A water-basedThe First Alert SMI105 AC interconnect hardwire smoke alarm with 10 years battery backup uses First Alert's precision detection advanced sensing technology and meets new industry standards. Interconnect multiple alarms together to help provide an early warning throughout your whole home and have peace of mind knowing the 10 years battery backup provides continuous protection in the event of a power outage.