Pair of surface-mounted photocells LARG, for connection via BlueBus Nice EPLB Safe: D type device according to specification EN12453 which allows to pick-up obstacles on the optical axis between transmitter (TX) and receiver (RX). Using the fototest function it is possible to achieve class 2 safety fault according to specification EN 954-1. The models EPL, EPLO, EPLIO provide for 2 range levels. Cutting-edge technologies: antiglare circuit which eliminates possible sunlight interference. Discreet: polycarbonate body, extremely strong with minimal projection of 9 millimetres from the wall for the recessed mounting version. Nice BlueBUS technology: all versions with the BlueBUS system allow an easy connection to the control unit of all devices with only two wires, by simply connecting them in parallel and selecting the jumpers for addressing according to the needed function. The system automatically acquires the devices connected to the BlueBus network and allows automatic synchronization with multiple photocells in order to avoid other possible interferences. IB interface: allows the connection of photocells with Nice BlueBUS technology to control units having terminals for traditional contacts.