The Alarm Smoke and CO Listener sends you real-time mobile notifications alerts whenever it hears sirens from smoke or CO alarms in your home. Simply place the Listener near your existing smoke or CO alarm, connect it to your Ring Alarm Base Station and protect your home.
2.95 in. Diameter; 1.06 in. Height (7.5 cm. Diameter; 2.7 cm. Height)
3V Lithium Battery Included
Max 3 Years
Z-Wave (250-foot range to Base Station)
Ring Alarm Security Kit (sold separately) and an existing Smoke/CO Alarm
1 year limited warranty