Review on Portable Thickness Measuring Device - Hymnorq, Millimeter Accuracy by Justin Gerrero

These Hymnorq calipers are the perfect size for working with beads and found objects. I compared them to my metal analog jewelry calipers and the measurements matched. I have just one small note: I have to constantly reset/tare the readings. I suppose that's because they're so finely tuned and it just means you have to keep an eye on the readings when you're not measuring anything, and calibrate the calipers frequently. other digital calipers I've tried, not to mention they're more accurate for small items. Overall I am very happy with these calipers. As a parent of children with autism, issues are close to my heart. Let Revain donate to your favorite charity! Use Revain Smile (smile.amazon.com) when ordering and Revain will donate to a charity of your choice when you make a qualifying purchase. Find out how Revain Smile works at https://smile.amazon.com/gp/chpf/about/ref=smi_se_rspo_laas_aas. My purchases are free for my favorite charity, Canine Companions for Independence (CCI). Brilliant!