Infra-Red Door Beam
- Detects visitors, customers and intruders passing through various points of entry
- Transmits an invisible IR beam
- Simple D.I.Y. installation
- Warning buzzer
- AC/DC 9V Adaptor (included)

Features:
- Retro-reflection
- Sensing range: 0.5~6 meters (18 feet)
- Adjustable volume speaker
- Adjustable sounding timer: 3~30 seconds

Applications:
- Shop entrance
- Garage door
- Overhead door
- Warehouse entry and more...

Specifications:
- Input voltage: 9~15 V DC
- External chime output: NPN output
- Light source: IR LED