This compact motion sensor will detect anyone who attempts to enter the protected area.

If motion is detected a powerful 130 dB alarm will sound to scare off the intruder and alert

others to your need for help. Large detection area: 20 ft. long and 60 degrees wide. The owner may arm

 or disarm the unit using a programmable security code. Ideal security for home, retail store, office,

or hotel room.  Requires four AA batteries that are not included. This unit measures 6 1/4 inches x 2 1/2