Siamp 10010735 Optima Auto Toilet Flush Valve With Contactless Sensor Button

The Siamp Optima Auto (10010735) is a contactless dual-flush outlet valve with infrared hand sensor. A smart electronic device automatically triggers a small or full flush according to hand gestures, with an intuitive push-button for manual full-flush activation if required. After each use the sensor enters standby for 8 seconds to conserve battery life.

Key Features

• Contactless infrared actuation for improved hygiene
• Small or large flush selected by hand gesture
• Adjustable small and large flush volumes
• Manual push-button override for full flush
• Battery life approximately 30,000 cycles (approx. 2 years in a typical 4-person household)
• Removable battery box with 3 possible positions
• Simple plug-and-play retrofit to Siamp bayonet strainer
• Base mechanism identical to the certified Optima 50 (electronic button excluded)

Specifications

• Power supply: 4 × AA batteries (not supplied)
• Hand detection height: up to 20 mm
• Adjustable height: 359–420 mm
• Sensor hole diameter: 39–42 mm
• Flush flow rate: 2.8 l/s
• Outlet: 2 inch

Applications

Ideal for concealed or back-to-wall cisterns with 2″ outlet and 39–42 mm front sensor aperture. Not suitable for 1½” outlets or pneumatic plates without the correct aperture.

What’s in the box

• Optima Auto electronic flush mechanism with 2″ outlet
• IR sensor module
• Battery holder
• Fixings and setup guidance