Trinix TRX-4B/10MWL is a modern wireless detector for perimeter protection. In order to detect an intruder in the protected area, they use IR rays that are constantly sent between the transmitter and the receiver. The range of IR barriers, as well as their aesthetic appearance, as well as the high quality of the materials from which they are made, guarantee the possibility of installation both inside and outside the protected object. Wireless infrared barrier TRX-4B/10MWL consists of two parts: a receiver and an infrared signal transmitter. In the protected area, the receiver and transmitter are located opposite each other, thus forming an invisible IR barrier. When a person crosses such a barrier, the IR rays are interrupted, after which the TRX-4B/10MWL sends an alarm signal via a radio channel (without wires) to the central unit. It is often used to protect the perimeters of private houses, cottages, construction sites, window openings, etc.