

🧲 Unlock authenticity anywhere with magnetic precision!
This Keychain Magnet Tester features a high-strength N40 neodymium magnet with over 2 pounds of pull force, housed in a durable plated steel casing. Compact and lightweight at just 1.57 x 0.47 inches, it’s designed for quick, on-the-spot testing of gold, silver, brass, and other precious metals to detect plating or base alloys. Perfect for professionals and enthusiasts alike, it offers a convenient, portable solution to verify jewelry and metal authenticity with confidence.



| ASIN | B08QV75QMX |
| Additional Features | Magnetic |
| Age Range Description | Adult |
| Best Sellers Rank | #177,817 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #88 in Jewelry Gold Testers |
| Brand Name | Envistia |
| Care instructions | Wipe clean with a damp cloth. Avoid exposure to strong magnetic fields. |
| Closure Type | Split Ring |
| Color | Silver |
| Customer Reviews | 4.6 out of 5 stars 952 Reviews |
| Fit to Size Sentiment | Good Fit |
| Garment Size Country | United States |
| Included Components | stainless steel split ring |
| Item Dimensions | 1.57 x 0.47 x 0.47 inches |
| Item Shape | Rectangular |
| Manufacturer Part Number | JM-MAG-0004 |
| Material Type | Aluminum,Brass |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Pattern | Solid |
| Product Style | Brass |
| Shoulder to Bottom Hem Length | 40 millimeters |
| Size | 0.47 x 1.57 inches |
| Style Number | Kmt-2023 |
| Theme | Silver |
| UPC | 732387205982 |
| Unit Count | 1 Count |
N**.
Great size. Perfect fit. TWSS😉
Worked perfectly.
A**R
Jewel of an item
Works great for testing jewelry. Always carried with my when checking items yo purchase. Small, easy to carry works to help identify real or plated jewelry.
R**A
Perfect magnet for small items
This is the perfect size magnet. I use it when I am thrifting to confirm brass
O**A
Good tool worth it
Amazing tool! I love it and have really used it.
P**H
Good qualify
This is amazing
B**Y
Love this jewel.
Works well. Simple and convenient.
M**A
That it was easy to use
It’s very easy to use and some jewelry that I had bought that I thought was not silver. I did the test with the magnet and it did not stick to it so you know that that’s one good thing and then with the polishing cloth it turns black and they say when that happens it’s because it’s real silver so some of my cheap stuff that I didn’t think was Sterling silver is so that’s good because I only wear sterling silver
P**L
It definitely works great!
This is definitely a super strong magnet! It works better than the slim bar shaped rare earth magnets I also bought to test some different coins for precious metals content. If you're coin is mostly silver, gold, or copper. This magnet won't attach to it. If it has any significant amount of any kind of steel or aluminum type alloy metals, it will attract to it in a very powerful manner! Between this rare earth magnet, and a pocket pinger. You can have a way to test for precious metals content for less than 35 dollars all together. If that's what you're looking for it's pretty awesome. If you just want a really strong magnet, it's good for that too. So I guess from my experience with this rare earth magnet, I have been pleased with the results. And would recommend it for what I've mentioned. I'm sure there are bigger, stronger magnets. But for the purposes I've mentioned, this one works just fine.
Y**A
Útil
Es pequeño pero se fija muy bien
T**N
Great magnet, great price.
I bought this to field test fine metals, and it does the job. Best of all, it fits on my keychain, so it's always handy. Strong magnet, but not so strong that it doesn't release easily.
L**R
Great
Nice to check is jewelry is real gold or not.
S**E
As described
It works fine but was much smaller than I expected
M**Y
Good construction, works perfectly.
Powerful magnet, use to hold receipts to a metal clip board. should work to retrieve keys etc. if should fall through a grating with a string attached so long as what's being fished is not a metal that isnt attracted by a magnet.
Trustpilot
2 days ago
1 month ago