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The Kynup Digital Caliper is a robust 8-inch stainless steel measuring tool featuring ±0.001” accuracy and a large LCD screen. Designed for professionals and DIY enthusiasts, it offers quick switching between inch, metric, and fractional units, splash-proof IP54 protection, and versatile measurement modes including depth and step. With smart auto-off and included spare batteries, it’s engineered for precision, durability, and convenience in any workshop or project.


















| ASIN | B099W9FT62 |
| Batteries | 3 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #740 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Outside Micrometers |
| Brand | Kynup |
| Date First Available | July 20, 2021 |
| Item model number | 170-3 |
| Manufacturer | Kynup |
| Material | Stainless Steel |
| Measurement Accuracy | 0.001 inch |
| Number of Batteries | 3 Lithium Metal batteries required. (included) |
| Product Dimensions | 3.55"L x 11.73"W |
| Range | [0, 8] inches |
G**D
Accurate, high-end (mostly) feel, 100% functionality. Measures both inside and outside dimensions.
This is a one of those items you find a need for and don't know what to really trust. Junk rules supreme across the 'zon scape. Worry not. I was once in your shoes. This device is solid, feels really machined (doubt it it is but it has a solid heft and feel. I can always measure a cheap display from a good one by tapping it. Hollow sound, not so good. This one: solid. The measurements are accurate and you can switch between units easily. You also have a stop functionality for presets. Fantastic unit for the price. Highlyy recommend. Going to get a lot of use out of this.
D**N
Good tool and not expensive
I h ave been pretty pleased with these. I have not attempted to check the accuracy, maybe I should. But they are easy to use, easy to zero and easy to move through the menu for different measurement units. Thanks goodness for the auto off. That helps with the battery life and I almost always forget to turn them off myself. The quality of the materials are pretty good. They feel solid endnote "cheap" The display is good sized and clear/clean. It is easy to read, and sharp details. Good value for the money. I am pleased with the purchase. I would r recommend and would also purchase again if needed.
D**O
Great digital caliper
This thing is heavy! Ours arrived with one button battery in place and two (2) spares! It seems to turn on as soon as you slide the display housing, a convenient feature but which may suggest why you need the spare batteries. I like that the reverse side has two legible thread charts for converting ISO to Imperial. It displays fractional inches! I cannot attest to its precision but it's good enough for my projects. It comes with a nice case and mini Phillips driver to remove the battery cover screws. Other reviewers suggest short battery life and erratic display behaviors. I haven't had it long enough to experience these but will be on the alert.
P**L
I think It's a good caliper although I have not had it for long
The display was already on when I opened the box but the power button has a definite 'click' to it so did I get a used one? It certainly doesn't look like it's been used and came with the manual, two cr2032 batteries and the screwdriver to replace the batteries with. First impression is that it's a bit heavier than my other caliper (202g vs 154g). It was displaying negative numbers instead of positive and the only to reset it was the take the battery out for a few seconds to 'reset' it. I like the fact that this takes cr2032 batteries instead of the less common lr44 in my other digital caliper. Be careful though, it's sharp! I was holding it too close to my face trying to measure something in the light and almost took my eye out. It's about 0.04 mm off from my other digital caliper but I'm not sure which one is more accurate... I purchased this one because my Neiko caliper kept resetting and displaying wildly inaccurate numbers if I went passed a few inches & because it uses a more common battery.
S**S
Awesome Precision at a low price
This vernier caliper is very well made and equals the quality of ones made by more well known precision instrument/tool makers. The one feature I like most about this tool is the thumb wheel that allows the user to make extremely fine adjustments to what ever it is they are measuring. The clear digital read out in millimeters, inches and the ability to switch between them and an added fractional read out is buy far one of the best features of this instrument. There is also a depth gauge feature as well. Well made, feature rich and an extremely low price make this one an awesome buy.
A**Y
Incredible
My one complaint is that the storage box that comes with these calipers is truly terrible - it's made of super cheap plastic, and one of the latches completely broke after only being used about 10 times. But with that out of the way, these calipers are phenomenal, especially for the price. They open/close super smoothly, they come with not one but TWO extra batteries (and just the fact that they run on CR32 rather than watch batteries is a huge plus), they feel premium and durable without being uncomfortably heavy, and of course they work exactly as intended. I did a few tests to confirm their accuracy, and they passed with flying colors every time. These are really great budget-friendly calipers. Are they as good as the $400 Mitutoyo ones? Of course not. But if you're just looking for calipers for everyday use/hobbies (measuring things around the house, 3D printing, etc), these will get the job done effectively, and for only twenty bucks.
R**L
Higher value than Pittsburg calipers
I’m sure like many purchasing calipers in this price range, I don’t use them often and don’t have a need for 100% accuracy. If they measure reliably and continue to work the next time I need them, that is all I really need. Previously I have purchased multiple Harbor Freight Pittsburg brand calipers which met my needs during initial uses but tended to stop working for unknown reasons when I went to use them 4 months later. The last set of Pittsburg calipers I had, I stored inside a range bag which got wet from minor rain on the outside of my range bag and that slight moisture which minorly transferred to inside the bag stopped them from working. I got these Kynup calipers due to the IP57 rating. My initial impression is they are a much higher build quality than the Pittsburg Calipers with more features, smoother operation and a stronger storage case, all at the same price. If they last due to being moisture resistant unlike the Pittsburgs, I will be thrilled and will update my review and purchase more of these Kynup brand.
L**A
Great, sturdy, heavy, clean caliper
I loved this caliper the moment I got it. Heavy, which in my mindset means good, precise measurements and the fraction display is awesome. Comes with two replacement batteries. Totally recommended.
H**Z
Fácil de usar y si repite las medidas de lo mismo que mides aunque tarde un poco en dar el mismo valor, lo que mas me gusto es quen se prende solo cuando lo abres y te evitas precionar el boton de ON. Aunque para medir cuerdas de tornillo muy cortas y finas no es posible eria como de 1 mm en adelante
G**.
I like this 150mm (6") stainless steel Kynup Digital Caliper. Perfect length for 95% of my needs. The fraction option is a nice touch. It is well built and has a nice weight to it. The slider wheel works well and the main part has ridges in all the right places in order to move it back and forth with ease. I did my research and this caliper was the best price and quality for my buck. I am very happy with my purchase and would recommend it. I paid $29.74 id Nov 2025. Cheers Gary
A**R
Delivered as described. Solid, robust, 2 spare batteries, accuracy in spec limits 0.02mm.
A**A
Ho acquistato il calibro digitale Kynup da 150 mm e dopo diversi mesi di utilizzo quotidiano posso dire che si tratta di un prodotto davvero valido, preciso e affidabile, soprattutto considerando il prezzo contenuto. Ecco la mia esperienza in dettaglio: 📏 Precisione e ripetibilità Lo uso per misurazioni su stampe 3D e continua a dimostrarsi affidabile. La ripetibilità nelle misurazioni è davvero ottima, con lettura in millimetri, pollici e frazioni di pollice. 🔋 Funzionalità elettroniche Molto comoda l’accensione automatica appena si inizia a misurare e lo spegnimento automatico dopo circa 5 minuti. La batteria CR2032 è di facile reperibilità, dura a lungo e nella confezione sono incluse altre due di ricambio. 🛠️ Qualità costruttiva Il corpo è in acciaio, con protezione IP54 dichiarata (non verificata personalmente). La costruzione è curata e in mano dà una buona sensazione di solidità. 🎒 Custodia e trasporto L’astuccio è forse un po’ troppo leggero, ma svolge comunque bene il suo compito di protezione. Durante il trasporto è bene serrare la vite di blocco, perché con le vibrazioni può accendersi da solo. ✅ Conclusioni Per il prezzo pagato non mi aspettavo una qualità così buona. Secondo la mia esperienza si dimostra persino superiore ad alcuni marchi più noti e costosi. Ovviamente, essendo uno strumento di precisione, va custodito e maneggiato con cura
O**A
fantastic tool! Works fine. However, I bought this same tool first at home depot show 'Karwei', and it was broken. I brought it back, got my money back and ordered this tool at Amazon. Fast delivery and works perfect. Nice tool, but I haven't used it at this time so much.
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