Omni-Beam timing logic modules are programmable for ON-DELAY or OFF DELAY or ON/OFF DELAY timing functions. Each delay function may be independently adjusted and separately programmed for either a long or short adjustment range. Programming of the logic function, the timing range, and the output state is done via a set of four switches located on the logic module. The logic module feature 15-turn clutched potentiometers for accurate timing adjustments. The logic module simply slides into the sensor head housing and interconnects without wires. Timing adjustments are easily accessible at the top of the sensor head, and are protected by the sensor head's transparent, gasketed LEXAN cover.