Had this in my 95 and putting back to stock so figured I'd offer it up. Modified per a number of threads here, cr.net, and m-s.net. I configured the resistor values to read around:
C- 170*F
Middle-190*
H- 210*
This worked great on my 95 when the cooling system was fully bled. If your system is not fully bled, it will swing back and forth about 2 hours depending on coolant hitting the sensor.
I would guess this would work great on 94-95 but can't speak for other NA years.
Looking for $27 shipped in the US