Digital Caliper, Caliper Measuring Tool with Stainless Steel, Electronic Micrometer Caliper with Large LCD Screen, Auto-Off Feature, Inch and Millimeter Conversion (6 Inch/150 mm)

From what I can tell so far, these are pretty good calipers at a great price. Precision seems to be accurate, I even tried moving the slide back and forth very quickly to throw it off track, and it seemed to hold its values perfectly. The calipers themselves are easy to zero, you simply close them, press a button, and you're good to go. What's also nifty about these is that it does have the ability to swap between inches and millimeters on the fly, and you can still get general readings from it even if the battery is dead because of the easy to read scale. Calipers themselves are good quality and everything you would expect from a set, and they come with a very convenient and functional protective case, in addition with a couple of extra batteries, and a screwdriver for battery replacement. The calipers can also be locked into place so the reading doesn't change, and it has a pretty cool auto start feature where if you start moving the calipers open, it will kick on and began giving you readings so you don't have to worry about resetting the claws and turning it on from scratch. All in all, I like this a lot, highly recommended!

Quality measuring device which provides consistent results that match those obtained from a second analog caliper that I own. Battery was installed upon receipt of the caliper, so it was ready to use immediately. Included two spare batteries. Easy to understand instructions included in the hardened plastic case which adequately protects the device when not in use.

A digital 6” slide caliper that’s accurate. It’s easy to read, use , and simple to set up.It’s plenty good enough for my occasional needs.

I've tried several inexpensive plastic calipers. They work for a while, but the electronics seem to give out. Also, they don't have a way to make fine adjustments or to lock the calipers in place. These sturdy, well-made metal calipers check all the boxes. It's easy to switch from metric to English measurements and easy to zero out. The thumbwheel lets you move the calipers in very small increments and there is a locking mechanism on top. The digital read-out is easy to read. It comes in a very sturdy case which protects it as well as having a place for a battery. I did find I needed to zero-out a bit more than I imagined I'd need to, but that's probably because of the precision as this device measures to fractions of fractions of millimeters. While I've not had it long enough to comment on the durability of the electronics, I anticipate it will last me for a long time, if not forever.

I'm a journeyman machinist, so maybe more picky than I should be. I can tell you this is a very accurate instrument, if used correctly, that is, don't expect to have an accurate measurement if you push too hard on the caliper when doing OD measurements, or have it at at even a slight angle when measuring a shoulder, or depth. I ran tests on my precision blocks, and 1, 1.5, 2.0 cylinders. It was within .0005-.001 accuracy. I didn't deduct a star but what I didn't like about this caliper is it only went up to 5.940", not 6+ inch range. I had to carefully mark the holding screw at the back, then grind a flat, then reinstall it to allow the caliper body to go back far enough to measure 6+ inches. I can do that but other users may have trouble if they're not machinists used to handling 2mm diameter threaded screws. This caliper doesn't display fractions, like others such as the Qfun seller. Not an issue for me but some may want this capability. But overall it is a nice caliper with all the numbers being large, not just the first couple numbers, then the rest of the reading has small numbers, like some calipers display. Also, the battery is easy to install, when needing replacement (they supply two, one in it, and another when needing replacing). Some calipers require a screwdriver to remove a cover.....deal breaker for me. I like the individual buttons on the front, not under the display face bezel. The dual/trio function calipers that have the on/off/zero are OK but you have to toggle through the button presses to get to what you want to do. So I give this a high mark, almost equal to my Qfun, and Acemeters, and slightly better than my $100+ Mitutoyos. Wait a second....Mitutoyos score lower? Yes. The display on mitutoyos are smaller than these or my other favorites. In odd measurement conditions, you need the largest display possible. Second, mitutoyos never turn off, unless you shut them off. If you forget and leave them on, then you need a new battery. This and my other calipers auto-turn off BUT, they keep the last setting, so you don't lose a reading or if you locked the caliper in place at a certain reading. If it shuts off, you just hit the on button and it'll display the exact reading last entered. Overall a nice unit, well worth the money.

Product came with multiple batteries, and even had one already installed. Also came with a screwdriver to replace batteries. Nice features include mm or inches, great case and packaged well. Never had the need for one before but needed it fast. This one came as promise in one day. Several Amazon products recently ordered promised one day delivery (prime) and did not arrive for 2-3 days. Delayed my project as had to travel. This exceeded my expectations.

Checked out perfect. Good value

Very well made. It is extremely durable and accurate!