Beam smoke detection system, addressed and motorised reflective type. Optical attenuation detection technology of the reflected infrared beam. The TFMIID-120 detector is equipped with an internationally patented OAS (Optical Alignment System) servo-assisted automatic alignment system. System consisting of two devices, the detection and control unit and the reflection and telemetry unit. Optical range 8 … 50m, extendable to 120m with optional additional TFMIID120-LRK reflector extension. Complete RSC® management of the device: programming, remote management and control of the operating parameters. Loop connection. Line separator with double isolator. Power supply: 24V DC detection unit from external source, Lithium battery telemetry device power supply. Degree of protection IP3x.EN 54-12: 2015 – EN 54-17: 2005.