Mitutoyo 500-196-30 Advanced Onsite Sensor (AOS) Absolute Scale Digital Caliper, 0 to 6/0 to 150mm Measuring Range, 0.0005/0.01mm Resolution, LCD

Just what I needed. Arrived in excellent condition.

Im a mechanical engineering student. Im using this for various projects and in the machine shop. Despite it costing more than competitors, I think it was worth it. The absolute feature is nice, not having to keep zeroing it every time you turn it on. I think the battery lasts longer in these than the competition; everybody elses calipers are always fritzing out because of low battery, but not mine. Oh, and these were authentic; I did a fair bit of research on how to differentiate from knock-offs. I made sure to buy from Amazon as the seller. I feel like these are the last calipers Ill ever have to buy -- a lifetime tool.

Purchased this to replace a Mitutoyo caliper that Ive been using for over 15 years. This set works great.

For years now, Ive used some cheaper name brand calipers to do my reloading projects at home and though I get a few years of pretty good use out of them, they always become inaccurate and gritty feeling, so this time, I elected to put in some extra coin and go with quality name brand calipers, and I wish I would have just gone this route before. Ive used Mitutoyo products in my profession for many years and they always hold up for long periods of time. The slide, readout, and accuracy of these are unparalleled when it comes to comparing them with pretty much anyones cheaper calipers. I can always trust Mitutoyo to be what Im looking for. Great price too!

I have to trust measurements and after working with these for a while now I do. It hurt a bit to pay the price but no regrets!

Seems to be a quality set of calipers, only like the Japanese could pull off. Mine came with the battery that is stamped Japan and the writing on the back is white. Watch out for China ones with whiteish lettering on the back and a cheapo battery.

Ive used these for 20 years at work so Im very used to them. Now I have a set of my own! Smooth action, big readout, bigger than the older style, that resolves 0.0005 inch in five full-sized digits. Simple to flip to mm. Does not turn itself off (a good thing!). Super stable---maybe due to the submicron internal resolution? Great finish and fit. Thumbwheel feels good. Batteries, per catalog, state 3 to 5 years but I suspect longer based on past experience---and I have left them on over many a weekend! This is not not a review of a counterfeit. This purchase was fulfilled by Amazon and their inventory control is impeccable. These calipers came in a sealed bag with a piece of Ferobrite VCI paper. That was placed in the one-piece molded case. On top of that, stapled all together, was the Ferobrite warning notice, a notice of the launch of Mitutoyos Smart Factory solutions website, a fold-out manual with 11 languages, a small notice to wipe excess oil from the calipers, a China RoHS compliance certificate (helping them to Import into China), a reminder to recycle batteries for the EU (in 7 languages) ---and--- an SR44SW battery made by Saizaiken, Japan. Batteries last a very long time in a real Mitutoyo and, just to be sure this is not a counterfeit, I made some measurements: Current when on was pulsing 2 to 6 μA and when off dropped to a stable 0.5 μA: very good. When a Mitutoyo wants a fresh battery a B is seen in the upper-right corner of the display. I measured this threshold at about 1.40 Volts. If you dont heed that warning, a Mitutoyo will not give bad or unstable readings but will instead simply turn off. I measured this cutoff threshold at 1.3 Volts and the readings were dead-stable up the that point. Other things that tend to indicate this is authentic is a CE mark with compliant dimensions, surface finish marks that are parallel with the tool, ABSOLUTE molded into the battery cover and gold plated battery contacts.

First let me say that like other reviews here I did my homework and checked that my calipers were genuine. The mitutoyo tech support stated that Amazon is an authorized distributor and my calipers were authentic. If you buy from another seller on amazon buyer beware. All the other things checked out, fancy japanese paper, crisp packaging, no battery installed, high quality build. Also, the genuine calipers have a qr code that contains the model and serial numbers. They should match. As for using the calipers themselves. They are great. Checked accuracy vs my micrometer and they were spot on. Display is easy to read. Like most calipers they are easy to use, nothing special. Dont waste your money on junk, buy real calipers and dont regret it.

I read a number of reviews that said other cheaper brands were just as good and there was no reason to pay more for a Mitutoyo. Bought the Mitutoyo and an iGuaging to compare. While they both may be accurate, the Mitutoyo has significantly better fit and finish, sturdiness, etc. Everything about it feels quality. Kept the Mitutoyo and the iGuaging went back.

I have this one for the workshop. https://www.amazon.com/gp/product/B01LPIWAYO/ I wanted a second one for inside the house. So I bought this caliper. Knowing what I know now, Id have spend the extra money to get the one I bought before for 2 main reasons. 1 - This one doesnt auto-power off. 2 - The buttons are small and practically flush with the plastic face. Neither of which was an issue with the other one. The other doesnt even have a power button it powers up and down automatically. Functionally it works fine and seems well made. Id just rather not be annoying by trying to press buttons it should be easy to press. Or opening the carrying case and noticing it was still turned on.