A sophisticated triple-beam set comprising an emitter and a receiver. The solar panel on each unit keeps the internal battery continually topped up, and the system will happily work with no external power source, even in our unreliable climate.
Each pair of beam units will cover up to 100m, allowing you to protect very long stretches of perimeter incredibly economically. The transmitting range back to the receiver is up to 800m. Up to 99 beam sets can be used on a system, depending on the receiver selected.
Beam alignment is surprisingly simple, and an audible beep is provided to confirm correct alignment.
Note: This is not a complete system. A receiver / control panel is required. See the complete system here.