120V AC/DC Interconnectable Ionization Smoke Alarm w/10YR Sealed Battery Backup Precision Detection technology helps reduce cooking nuisance alarms and provides early warning. 10-Year battery backup provides continuous protection during power outages Through early warning interconnect, when one alarm sounds, all compatible* alarms will sound Alarm indicator visually identifies the unit that initiated the alarm End-of-life warning lets you know when it’s time to replace the alarm Test/silence button for efficient testing to ensure alarm is working properly Color/Finish Family: White Series Name: SMI105-AC Sub-Brand: BRK Type: Smoke detector Height (Inches): 2.25 Length (Inches): 5.69 Size: Standard Width (Inches): 5.69 10-Year Battery: Yes Alarm Sensor Type: Ionization Battery Back-Up: Yes Battery Included: Yes Battery Type: Lithium For Use with RVs: No Front-Load Battery: No Hub Required: No Hush Feature: Yes Interconnection: Yes Light: No Low-Pitch Tone: No Package Contents: Easy Adapter Plug Package Quantity: 1 Power Source: Hardwired Sealed Battery: Yes Voice Alert: No Voltage: 120 Warranty: 10-year limited Bluetooth Compatibility: No Wi-Fi Compatibility: No Works with Android: No Works with Apple HomeKit: No Works with iOS: No CA Residents: Prop 65 Warning(s): No Safety Listing: ETL safety listing UNSPSC: 46191500