Hi Ray,

I got mine from Halfords about a year ago. OK, its cheap and cheerful but does the job and comes out of its box 2 - 3 times per year. I also use it when testing plug leads (remember them?) and an invaluable piece of kit for the older car. E.Bay also had a few. My original one died when struck by an electric fan that came on expectantly.

Regards

Pete M