The Mini Alert Alarm uses passive infrared technology to protect a room from intruders or announce customers. Producing an infrared triangle, the Mini Alert creates an unseen barrier across a doorway or window that's impossible to penetrate without setting off the alarm! Battery operated, the Mini Alert needs no wiring and can be easily moved to a new location. Mounting bracket included. Requires three "AA" batteries.

New alarm in opened package. I purchased this alarm new and never used it, but it didn't meet my needs so I'm selling it to you. It would be great for a business that needs a little chime or buzzer to alert you when a customer walks in your door, or for a burglar alarm for a home. Can be set to siren or chime.