We do have a keypad tester that we built, but it hooks to a computer to make the tests.
I went looking for something but came up empty, so had to build our own.
If we were to design a nice compact low cost portable keypad tester ... how many could we sell and for how much?
It's definitely a feasible project for us ... but would need to invest some time.
I'm thinking it would take the form of a small plastic case, battery powered, with a ribbon cable to a keypad compatible connector. There would need to be at least 2 ribbon cables to accommodate the different pin pitches. I think an LED for each pin, which would light if continuity is detected below a "good" resistance.
Let me know what you guys think, if there is enough interest I'll look at building a prototype.