Supco M500 Insulation Tester/Electronic Megohmmeter with Soft Carrying Case, 0 to 1000 megohms Black

Can accuracy make sure compressor good or bad.

Good diagnostic tool to have in your pouch

Use daily at my work,and very dependable.

i like it is very helpfull

Good meter

Great purchase. Exactly what we needed

I bought this thinking I can test my electric wire insulations before and after I wire the house. In fact, it has no instruction anywhere in the web, its own website also. From the bits of info I gathered, this is not really a diy instrument, therefore, returned. I ate the return shipping (not that much) but better than using instruments I cant understand.

Dummly simple, even I can use it with ease.

Simple to use !

Works well and very user friendly.