Controller Replacement & Mk5S Upgrade Retrofit

Whether you need a like-for-like replacement or want to upgrade an old panel to the latest Mk5 / Mk5S, we supply the correct unit — matched, programmed and ready.

Like-for-like replacement

Send the failed controller's part number or a photo; we identify it (including superseded numbers) and supply the correct new unit, pre-programmed.

Upgrade / retrofit

Move from Elektronikon I / II to Mk5 or Mk5S with the correct upgrade kit and wiring guidance — for a modern touch interface and connectivity.