Beam Detector 3-30m With Reflector 48BFC00048BFC000 is an optical beam smoke detector which provides protection over distances ranging from 3 m to 30 m and up to 15 m wide. When used with accessory 48BFA003, it can be be flush-mounted in installations where aesthetic considerations are particularly important. Equipped with an integral laser and a set of passive reflectors, it is ideal for use in areas where the installation of standard point smoke detectors would be too problematic or impossible. The integral laser allows simple auto-alignment without the need for any special instruments or equipment. Also equipped with two changeover relay contacts for alarm and fault signalling. Approved to EN 54-12.