A beam detector is a fire detection device that uses infrared beams to detect the presence of smoke. Using a detector on one wall and a reflector on the one opposite, the detector shoots the infrared beam across an open area to the reflector, which sends it straight back.

.Manual call points are used to initiate an alarm and operate either by pressing a simple button or by revealing a button when a glass is broken. The monitoring unit will have an indicator for visual indication to easily locate the call point