100m Sensor Alarm, Dual Beam Ir Infrared Detector

hi I'm Mike from detect alarms co uk and today I'm going to show you our best-selling infrared beams for perimeter protection of properties what we're selling here I'm showing you today is a pair of 100 meter beams what you'd receive is a receiver and a transmitter and these can be spaced up to 100 meters apart they emit an infrared beam between them two beams in fact they're dual beings anything crossing that beam will set the alarm off say 100 meters up to 100 meters apart so you can cover a whole garden you can have one pair up one side of the garden one pair across the other side across the back all your property the whole area can be protected by various pairs of infrared beams I'll just show you how to connect them up take the part look inside what you have on the bottom is a small screw which you slacking off you don't take the screw right out I've can drop and you can lose it if