Bell + Howell Secure Pro Keypad Alarm System is wireless and battery operated.
The Secure Pro Keypad Alarm System is great for doors, sheds, sliding doors and garages. It is a perfect alarm for around swimming pool doors.
It is simple to install and requires no wiring, just use the provided hardware and double sided adhesive tape. Turn it on to one of the three settings, instant, delay, or chime and when the magnetic contact is broken, the alarm will sound. As a special feature, you can activate the 110 decibel alarm with the panic button.
Requires 3 AAA batteries (not included)