BRK SM100V-AC 1046721 Voice/Location Hard-Wired w/Battery Back-up Photoelectric Smoke Detector BRAND-NEW AND COMPLETE! THE BOX WAS OPENED AND INSPECTED. BRK, SM100V-AC, 120V AC/DC Photo Smoke Alarm, Includes A Large Opening In The Mounting Bracket For Easy Access To Wiring, Key Hole Slots In The Mounting Bracket Eliminate The Need To Remove The Electrical Box Screws For Installation, Battery Pull Tab Keeps The Battery Fresh Until The Home Is Occupied, Battery Installation Removal Can Occur While The Unit Is Mounted To The Ceiling Or Wall Via The Side Load Battery Compartment, 2 Locking Features Are Provided To Prevent Battery Theft /Or Theft Of The Unit, Connection To Ac Power Is Made With A Quick Connect Wiring Harness, Easy Installation Maintenance. Height 5.76 Length 2.47 Width 5.76 Country Origin Code MX Packaging Type Boxed Each Weight 0.720 LB Returnable Yes Sub Brand Voice and Locatio Test and or Reset Button Yes Product Type Smoke Detector ECCN EAR99 Voltage 120 Color White Power Source Hardwired Width (in) 5 Length (in) 5 Height (in) 1.9 Certification UL Listed Noise Rating (dB) 85 Battery Type AA Battery Back-up Yes