Product InformationThe Westek Indoor Wireless Door/Window Alarm is effective pretection against unauthorized entry. The alarm mounts on windows or doors, and comes with both the batteries and the mounting tape. The SEC300 provides Safety & Security with this easy-to-install, 90db alarm.FeaturesLoud 90db Alarm to Warn Against Unauthorized EntryOn/Off SwitchMounts to Windows or DoorsEasy to Install - No Wiring or Electrician NeededBatteries & Mounting Tape IncludedSpecifications90db AlarmRequires (3) AG13 Batteries - Included