Portable Motion Sensor

PIR technology uses infrared radiation to detect the motion of warm bodies. Two modes:
alarm... producing a loud (110 dB) alarm with 30 second delay,
chime... instant, less intense chime sound

The Portable Motion Sensor uses advanced technology to detect intruders and activity in a controlled area: 90° horizontal view, 20° vertical view up to 24 feet from unit. Completely self-contained and portable. Can be mounted on a wall, floor, or simply placed on a tabletop. Unit is armed and disarmed from up to 30 feet away with the handheld remote (included).

Great for security or paranormal work when you want to monitor an area for activity. Needs 4 AA batteries (not included) or you can power it with a 6 V, 500 mA AC/DC adapter (sold seperately).