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

I used the Mitutoyo 500-196-30 150mm caliper for years as a student machine shop hand in undergrad, and now I bought my own set. Its as good as I remember. They are a small piece of perfection in your hands. It came with a Certificate of Inspection that is specific to my caliper (the certificate has the serial number matching my caliper). It shows measurement errors at 0, 50, 100, 150, and 200mm lengths, as well as 0, 2, 4 and 6 lengths. It is NIST traceable via No.683/283699-13. It is also NMIJ/AIST and PTB traceable. I dont know if this is the same as the certificate of calibration that is optional on mcmastercarr, but it is a convincing document. As noted by others, it does not have an auto-off feature. The batteries last a long time, so I dont think this is an issue. One small disappointment: I bought the Mitutoyo 050083-10 75mm depth gauge attachment (

How to tell if your calipers are genuine / Buy from Amazon.com LLC Here is how to tell if the Mitutoyo calipers you purchase here (or anywhere else) are genuine: First, and most importantly, I purchased my calipers from Amazon.com LLC because I have come to trust them as a seller, and I knew they would take care of it if I found out the calipers were not genuine Mitutoyo. They were offering the calipers for 92.00 USD with free Prime shipping, which would be the best deal on the web for these calipers if they were in fact genuine. Secondly, once the calipers came, I took careful note of the packaging and paperwork and took good-quality pictures of it all. I checked these important details: (1) The battery should read “SR44” and “Japan” on the battery itself (not just on the packaging), and there should be no battery already installed in the calipers. (2) The calipers should come in a sealed plastic bag packed with a bit of Ferobrite anti-corrosion paper and a yellow tag on the locking knob telling how to install the battery and such. (3) The display of these calipers should read, 0.0000 when zeroed out in the inches mode - counterfeits might read, 0.000 and might have a smaller 0/5 digit on the far right. (4) The locking knob on the top should be the same shape and style as shown in my pictures. (5) The ORIGIN button should be recessed as also shown in my pictures. (6) The serial number on the caliper should match the serial number listed on the calibration certificate. (7) The calipers and packaging should not mention China - anywhere - especially not on the box/envelope in which they were shipped. (8) According to Mitutoyo, it is actually okay if the signature is printed on the calibration certificate, which is a little disappointing, as I have always wanted Mr. T. Suzukis autograph. After I checked for these dead giveaways, I emailed Mitutoyo at their tech support page telling them where I had purchased the calipers and I asked if they would please verify my calipers authenticity, and offered to send pictures. They replied quickly and asked for the pictures, so I sent them pictures of all of the components, packaging, and documentation making sure the image quality was good enough that they could make an informed decision. The next day, they got back with me saying that they had confirmed my calipers authenticity. Follow the steps I have outlined here, carefully compare the calipers you receive to the pictures I have given, and hopefully you can have a similar experience.

buen producto de amazon es un vernier original mitutoyo

Constructed to last. Good accuracy

Nice build sturdy and very accurate

The only negative about these I am noticing right now is the surface finish and burrs on a few of the non-critical surfaces. They measure fine, but I was slightly disappointed in the fit and finish of those few areas. The other Mitutoyo calipers Ive used havent been like this. Its not a big deal, but it is there.

What can I say, I LOVE THESE CALIPERS!!! Ive had around 12 sets from various makers over the past few years and every set has had a week point whether it be jumpy, inaccurate, constant need to rezero, rough sliding mechanism, extremely sensitive to pressure, you name it. Not with these! I primarily use them in my reloading and occasionally to get a rough measurement on parts I make on my lathe. If you are thinking about getting them just go ahead and do it, and save yourself some time and aggitation. If I had bought these to begin with I wouldve even saved a few bucks overall.

Just a perfect caliper in every way. Can’t go wrong with it and it’s the go to caliper in the precision machine shop I’m in.

the best in measuring

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.