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)

For the price these really can't be beat. Even comes with extra batteries. Used it to measure my new coilover setup on my car and have used it a few other times in the course of a week since purchase. So far so good, a great value.

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.

Great for the price. Very good quality

very good quality product, incredible customer service

I use these for alot of things. Accurate and the batterys stay charged for a long time.

Surprisingly good for the money. I've had mine 2 months and good so far.

Anyone complaining about these WORKING AND ACCURATE $25 calipers is insane, they’re way more accurate than I expected, sure they’re probably not rated for machine coolant but that’s okay since I’m using them for automotive parts. Fun fact these calipers were used in Jerryrigeverythings Cybertruck review video on YouTube

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.