Because you could have come to the same conclusion with a cheap 10$ caliper since we don’t know what kind of testing you did. This caliper is around 35$, that means it’s overkill for anyone who wants to measure cell length and “normal” every-day things and consequently its is expected that the caliper plays in the same league as some good 50$ - 150$ calipers, otherwise there’s no point in ordering it from china and sacrificing warranty and local customer service. And for this price range it would be good to have some hard facts.
Yes, but Mitutoyo calipers have a way smaller variance than a 10$ caliper. And it would be interesting to know how much off to the true measurement the SHAHE one is. Of course it’s only one model and doesn’t tell us very much, but it’s a start.
Why elaborate about how you came to the conclusion? Well that’s the most important part and a crucial part about a good review. Otherwise we’d have light reviews saying “I recommend this light” and nothing more. But that’s not the case, because it is important for the reader to comprehend what led the review-writer to the decision that it’s a good light and tells the reader what kind of standards the reviewer has. This includes measurements, thoughts, and so on. Ideally I can come to my own conclusion based on the review, if I think the light/ caliper/ … is good for me or not. For example for me this caliper is of interest because it would be nice not having to use my expensive one when there’s a lot of oil and dirt around, but I would like to know how it compares to the caliper I use.
Why go on about it? Because someone who wants to find their way around the house and isn’t into flashlights will rate a 5x5mm led light as good. Someone who is searching for a professional search- and rescue-light might give a TN42 an acceptable rating and decides to go with a Polarion. So you can’t say uniformly that a product is good for everyone, again that’s why it’s important that the readers are able to comprehend why you think it’s good.
You don’t seem to appreciate it… I did not mean to discredit your knowledge on measuring tools, I am sorry that I came off as rude.
If they all give the same reading then it good, then we know that they are all equally much off and it requires either a referenced thing or something that measures in a more precise range in order to tell how much these are off.