https://imgur.com/a/WH8HAIn collaboration with TheKeyCompany, I have developed an add-on OLED screen kit to fit the TKC1800. It is a turn-key solution requiring only the soldering of a 4-pin header to the PCB and trimming some of the plastic support ribs out of the case to allow space for the connector and cable.
https://goo.gl/forms/vewQo3T835rLEgAj2 Target price is $35 for black or white, $40 for additional colors. Due to how 3d printing filament is sold, there will have to be multiple requests for a color before it can be produced.
These **will** be fulfilled with your TKC1800 kit purchases.
Added some pics of samples I printed for Terminal, Sky Dolch, and SKIDATA. Unfortunately, I've not found a filament that is a perfect match. These are the closest I could come up with.
