Vintage 1980's General Electric Zonar Burglar Alarm. Single family owned by my gadget loving father. Lots of uses besides home security - Can be used to help keep small children and pets contained in a certain area....set up in the hallway to know if kids get up at night.

- invisible ultrasonic beam can guard likely entries a burglar may use - up to 30 ft. away.

- like 'sonar' - it listens for moving objects - an intruder crossing the beam triggers a loud 85 decibel warning.

- Simple to set up - aim towards or across 'point of entry to set your line of protection.

- Aim at valuables such as a safe or jewelry.

- Portable, so you can take it while traveling.

- Battery operated with low battery warning  - works even when power has been cut.

- complete with factory instructions.

Your item will be sent via the US Postal Service.