Bests & Worsts Reviews from Amazon

When I bought this, I didn't need the fanciest meter. I needed a second one because I didn't want to risk losing my husband's nicer one in a gymnasium full of kids. I needed a basic one to test a few things for my daughter's 5th grade science fair project. I'm familiar with using these, and figured this would work based on the information and the reviews. This is made out of a cheaper feeling plastic but for the (under $15) price, it's perfectly fine. The 9-volt battery that was included was dead, so I'd consider having one (9V) an extra on hand. Initially I thought that aside from that issue it was fine. However, after using it a bit for a basic to work with my daughter on a science fair project, we could not get any consistent readings and it kept causing errors when compared to our other meter. I did lower my rating and was contacted promptly by AstroAI, to help figure out the problem, which was a faulty lead. They immediately sent a new one and it was indeed the issue. This right there speaks volumes of their company. Replacing the lead, and testing against my other meter, this works just as well as my husband's meter that cost quite a bit more. It may not be as durable for what I need it's great. Knowing how well they responded to the problem, I would buy again in the future.