Modular infrared linear optical smoke detection system. Reflection detection technology. The system consists of a management and control unit, a detection unit and a reflective panel. Optical range 8...50m, extendable to 120m with optional extension kit TFBD-5000 LRK. The controller can manage two additional TFBDT-FRR 50 detection units. The control and signaling interface have an LCD display, six management buttons, three LED for monitoring operating states, two relay outputs: Alarm and Fault. Independent LED and signaling relays for each detection unit. Programmable sensitivity level. Recording of system operating events. Servo-controlled laser alignment system with automatic alignment correction. Dynamic compensation for sensitivity loss due to dust settling. Excellent tolerance to vibration. Supply voltage 14...36V DC. Power consumption 12.5...17.5mA. Protection rating: controller IP65, detection unit IP55. Operating temperature -10°C... +55°C. Polycarbonate housing UL94 V0. Controller dimensions (L x H x D) 274 x 170 x 73mm. Detection unit dimensions (L x H x D) 134 x 131 x 131mm. Approved EN 54-12. Certification: 2831-CPR-F4372.