The ceiling mounted ZipFlushMaster Solo narrow beam infra-red sensor, shown at left in the picture, is designed for single urinal coverage and typically covers an area 0.2 metres deep and 0.3 metres wide when installed in a 2.7 metre high ceiling. Compared with the Zip FlushMaster this model has the added benefit that the sensor only activates once the user has been standing within the range of the sensor for 10 seconds or more. This prevents the system flushing when not in use. The system has additional functionality to the Zip FlushMaster. When there is a loss of power, the system conserves water by automatically closing the latching valve to stop any water flow and the detection LED flashes red to indicate power failure. The system regulates water flow t