SIAMP Optima Auto Infra-red Pack — Smart Electronic Dual-Flush — 10010735
Touchless IR Dual-Flush 2" Outlet Battery (4×AA)
Upgrade to a hygienic, hands-free flush. The Optima Auto infra-red sensor recognises your hand to trigger a small or large flush, helping save water without compromising performance. Powered by 4×AA batteries (no mains wiring), with an expected life of up to 30,000 cycles.
Check before you buy: This kit suits concealed/back-to-wall cisterns with a 2" outlet, a 39–42 mm front sensor hole, and space for 359–420 mm mechanism height. It does not replace pneumatic plates without a 39–42 mm hole, 1½" outlet cisterns, or mains-powered plates.
Key features
- Touchless infra-red operation for improved hygiene
- Dual-flush gesture control (small / large)
- Power: 4 × AA batteries (not supplied)
- Expected life: up to 30,000 cycles (approx.)
- 2" outlet fitment included (common UK concealed size)
- Adjustable height: 359–420 mm
- Sensor hole: Ø 39–42 mm
- Brand: SIAMP · MPN: 10010735 · FTB: FTB13343
What’s in the box
- Optima Auto electronic flush mechanism (2" outlet fitment)
- IR sensor module (fits 39–42 mm hole)
- Battery holder (uses 4 × AA — not included)
- Fixings & setup guidance
Benefits
- Hands-free use reduces touch points and helps minimise germ transfer
- Water-saving dual-flush control for everyday efficiency
- Battery power avoids mains wiring and simplifies installation
Technical summary
| Brand | SIAMP |
| Model / MPN | 10010735 (Optima Auto) |
| FTB code | FTB13343 |
| Power | 4 × AA batteries (not included) |
| Expected life | Up to 30,000 cycles (usage dependent) |
| Outlet size | 2" |
| Sensor aperture | 39–42 mm |
| Height (adjustable) | 359–420 mm |
| Flush type | Dual (small / large) |
*Typical domestic use; actual life depends on usage and battery quality.
Fits
- Concealed / back-to-wall cisterns with 2" outlet
- Front hole 39–42 mm for the IR sensor
Does not replace
- Pneumatic (air) plates without a 39–42 mm hole
- 1½" outlet cisterns
- Mains-powered electronic plates
FAQs
Will it work without mains power?
Yes — it is fully battery powered (4 × AA). No mains wiring is required.
How do I choose small vs large flush?
Move your hand across the sensor as per the setup guidance: a short pass triggers the small flush; a longer or closer pass triggers the large flush.
What else should I replace during fitting?
Consider fresh AA batteries and, if servicing the outlet, a new 2" doughnut / flush-pipe seal.