Motion Strobe Alarm with strobe light and remote

Provide security for any location in your home or office with this full-featured alarm. It uses an infrared sensor to detect motion up to 30 ft. away with a wide 110-degree beam. When someone draws near, a piercing 120 dB siren wails and the built-in strobe light flashes continuously. Alarm sounds for 35 seconds, then shuts off if no more motion is detected, automatically re-arming itself. Alarm is armed and disarmed by included keychain remote. After arming, alarm has 10-second exit and entry delay to prevent accidental activation. Features adjustable wall mount with provided brackets and hardware. Alarm unit includes emergency light with on/off switch, low battery indicators, and exit and entry delay indicators. Powered by one 9-volt battery (not included) and 4 "AA" batteries (not included) or 9-volt DC adapter (not included). Remote powered by provided 12-volt alkaline battery. Alarm: 6.25"H x 2.5"W x 2"D. Remote: 1.25" x 2.25" x .5".