Siamp 10010735 Optima Auto Infra-Red Contactless Sensor Dual Flush Valve Pack

Optima Auto contactless dual flush valve with infrared hand sensor
Small or full flush selected by hand gesture, with a push button for manual full flush
Sensor goes into standby for 8 seconds after each use to save battery life
Adjustable small and full flush volumes
Battery life approximately 30,000 cycles
Removable battery box with 3 possible positions
Plug and play retrofit to the Siamp bayonet strainer
Base mechanism identical to the certified Optima 50
Powered by 4 x AA batteries (not supplied)
Hand detection distance up to 20mm
Height adjustable from 359 to 420mm
Sensor hole diameter 39-42mm
Flush rate 2.8 litres per second
2″ outlet – Not suitable for 1 1/2″ outlets