4 Stars

Now it works on wrote

When I got the analyzer it had the batteries installed which I thought was odd, I figured I probably got a return. It didn't work, I checked the batteries since I didn't know how long they had been in the unit. two of the three were a little low but the third the polarity was reversed, huh? How does that happen? I checked it twice. I put in fresh batteries and the unit worked fine. So if you get one that doesn't work like some others have commented, check the batteries.