David L From United Kingdom, joined May 1999, 9294 posts, RR: 42 Reply 1, posted (8 years 10 months 3 days 7 hours ago) and read 2135 times:
You could try a search for the file alt_clts.zip. I think I got it from FlightSim. I've used it in a lot of aircraft without a problem.
It's been a while since I installed it but I think it's just one file to put in your Gauges folder and then you have to add one line to the panel.cfg of each aircraft you want to use it in - instructions included, of course.