[Closed] Trip Computer

Hi I am seeking recommendations for a cheap trip computer to leave permanently on the commuter bike so I can see how slow I am going. Ideally would like a back light and to be wireless.

However, I have had had a terrible experience with two wireless Cat Eye computers that do not work in the dark. Cat Eye customer service have acknowledged that their computers are affected by LED lights so an alternative to Cat Eye would be good. If all wireless computers are the same I would be happy with a wired solution.

I have a Garmin for exploring so don't really need another GPS.

Hope you can help