The sensor, developed in a sturdy metal housing with standard fixing, is available in 3 different versions. The TL46-W basic version has only one set push-button, 2 LEDs indicating the output status and sensor acquisition condition. The performances and use ease have be optimised and offered at a competitive price.The TL46-WL standard version has set 3 push-buttons, 4 LEDs signalling the outputstatus, sensor acquisition condition, delay output activation and push-button activation. A bargraph is also available for manual setting of the threshold to detect particularly difficult contrasts.