Door Entry Alert System c/w Reflector Beam, Chime Door Entry Alert System. Door Entry Alert System

Easy to install. Adjustable timer & volume
Applications: entry detection, automatic alarm warning, present detection
Includes:

1 x retro-reflection IR photoelectric beam sensor
1 x power supply 230V/9V DC/200mA
1 x alarm speaker (timer & volume adjustable)
1 x 10 m Cable (plug N play)