NEIKO 01407A Electronic Digital Caliper Measuring Tool, 0 – 6 Inches Stainless Steel Construction with Large LCD Screen Quick Change Button for Inch Fraction Millimeter Conversions, Digital Caliper Measuring Tool

Solid, straight, accurate. Very good quality.
Extremely helpful with sizing gemstones and also doing some gunsmithing, making sure everything is in spec. So far it returns to zero (0.00mm) accuracy even when sliding recklessly. Tool comes out of the box very clean, stainless steel is good quality and not warped, plastic measuring face is average. I wiped it all down and applied light gun oil down the channel. Feels solid and as long as it’s treated nicely as you would a Mitutoyo it should last about as long.

Decent budget caliper with minor problems
UPDATE 2: They apparently mailed a replacement caliper to my old address from the original order, but because I moved it got returned to them and they finally reached out to ask for my current address—a month later. I didn’t even realize they were sending me a whole new caliper. Not complaining (giving back a star), but better communication would’ve helped. Original review stands, it’s a solid budget caliper.UPDATE: I emailed them about the issue, and they asked for a video and the order invoice. I provided both but have been ghosted for nearly two weeks now—no reply at all. On the bright side, I figured out the issue was the battery and not the caliper itself.For hobby 3D printing, this caliper is precise enough. However, compared to my iGaging caliper, the jaws are less precisely constructed, and the body is made of plastic. It’s nearly impossible to get accurate readings without the digital display.The supplied battery lasts about a year (less with heavy use). There’s no clear sign the battery is dying until the digital display starts acting up: numbers bounce around randomly without touching the calipers, the buttons make things worse, and the power button stops working. A fresh battery fixes this, but it’s an annoying quirk.Overall, this is a solid budget option for hobby use or occasional tasks. Just make sure to have spare batteries on hand—they’re cheap and will save you some frustration.

Good and precise at a good value
Caliper is of decent quality, very accurate and quite easy to use. It has a beautiful strong, slender case icluded.

Highly inaccurate with non-repeatable readings (which change with no motion of the slide by the way)
I ***HOPE*** that I got a lemon, and it’s a titanic lemon at that.First it arrived on and running in the box. The values on the dial were changing continually to random numbers. The reset button had no effect (as I later found out) also dd the in/mm button.So after learning that the reset button was useless, I removed the battery and gave the unit a minute or two “to relax” in case there was a small charge left in its circuits. Then (after 10 minutes actually) I replaced the battery, and was surprise that the unit turned on immediately (although I had very carefully avoided touching the on/off switch). Surprisingly the same random displays started up immediately but this time after using the reset (clear?) button several times and then holding it down for about 30 seconds, the weird behavior stopped and left me with a set of random digits that meant nothing that I could imagine. So I (a) removed the battery, (b) cleaned the unit thoroughly removing any oil/grease/water/dust/pollen/whatever from the unit (just in case) and put a second new battery in it and turned it on. It initially showed a random value but the reset button seemed to work (that was wrong but i hadn’t figured that out yet).When it turned on I made sue (using the thumb wheel) that the caliper was pushed back in to the “0” position and hit the reset button. It then showed -0.03″ (I didn’t write down the last digit … sorry), but after 5 (yes FIVE) resets it finally showed 0.So I tried to use it. I have a set of calibrated 1-2-3 set-up blocks (1″x2″x3″ certified as accurate to withing +/- 0.0005″) and none of the measurements was anywhere near the values the caliper should have shown.Specifically the 3″ side showed as being first 5.9… inches then suddenly 1.23.. inches then some other random number. The other two sides were measured with equal inaccuracy. So why go on? Because I’m a retired physicist and I’m used to dealing with things that “don’t behave in a rational way.” [ever hear about quantum mechanics? Yes, it’s that illogical.]To make a long story short the reading were random and they changed of their own volition while the caliper was sitting on a desk and nobody was touching it. I tried it with three different batteries, and the results were NOT all the same – no instead they were all equally, randomly incorrect.I sincerely expect that this is just a bad unit. But my last calipers were a really cheap set from Igaging (made of plastic at that) BUT those are still working just fine and with completely accurate, repeatable results (I still have an older manual set that may have come over on the Mayflower but is still highly accurate – I just prefer digital for ease of reading. But it’s great for checking accuracy – and it and the plastic Igaging set always agree to with the limit of my eyesight (sorry – a magnifying glass and a bright light helps).So i will be returning this unit and am going to buy another set. But you can safely bet you life savings that i will not be buying another set from NEIKOBecause this unit was so unreliable and inaccurate, I cannot recommend it to anyone who doesn’t simply want a strangely-shaped paper weight. From my experience it is definitely not a good purchase.

Buen calibrador, mide en milímetros, milésimas de pulgada y fracciones de pulgada. Comparé su precisión contra un Mitutoyo análogo y es bastante preciso, por el precio está muy bien. Lo que no me gustó fue que la pila venía ya dentro del vernier y pues ya estaba descargada cuando lo encendí por primera vez, me marcaba error. Solo tuve que cambiar la pila y problema resuelto. Recomendable producto.

Received goods as described, shippingis per planned arrive date and a well packed shipment