I've read the reviews on here and looked around for other calipers. Obviously I made the right choice (in terms of price). Among the comments that talked about the number of decimal places, I think 4 is enough. Unless you're building a space shuttle, you really don't need more than that. 5 stars if this caliper had an auto on/off feature. I accidentally left it all weekend. and still works. It would be nice to have an extra battery on hand. Oh, and by the way, the product I received was absolutely not counterfeit as most of the customers have mentioned here about their purchases. It all depends on who you buy it from, I understand?