The award-winning ceiling mounted Zip FlushMaster infra-red sensor typically covers an area 1.2 metres deep and 4.8 metres wide when installed in a 2.7 metre high ceiling. The same coverage applies for surface mounted and ceiling recessed sensors. Rotating the sensor changes the sensor coverage field accordingly. Zip FlushMaster systems comply with Australian Standards and all Australian plumbing codes. They have a "AAA" Water Conservation Rating from Standards Australia as well as a WaterMark licence number W235. The system regulates water flow to a cistern or direct injection sparge pipe by means of a 6 volt latching valve with an operating pressure range of 35 to 1000 kPa. When the pressure is over 700kPa use of a pressure limiting valve is recommended. For additional water control, a Zip Restrictaflow valve can be installed. This allows the water flow to be easily modified to prevent splash back. Featuring a patented clog-clearing design, the Zip Restrictaflow helps t