Has anyone used an NFC signal detection card? It looks really cool. Can I buy one to test it out?

[Pilgrimsmaster]

@alanshen230

Can I buy one to test it out?

What are you trying to test?

Home

Sell a couple of options (or included free with an implant)

Dual Frequency x-Series Field Detector Keychain

X Field Detector

RFID Diagnostic Card

Midwestgadgets.org have their own products (can also be purchased through dangerousthings.com)
Have some other options

Field Visualizers | Midwest Gadgets LLC

Meters | Midwest Gadgets LLC

13.56mhz Field Detectors (28mm) | Midwest Gadgets LLC

Some reviews

(*****)13.56mhz Field Visualizers by Midwest Gadgets

Field Visualizer [20260509_214436] INTRODUCTION Field Visualizer by MidWest Gadgets. I love my field detector; it is a fantastic tool to accompany a repeater sticker and is perfect for finding that initial sticker placement. The DT Diagnostic Card is perfect to see if a 13,56MHz field exists and to identify the duty cycle, but as it says on the tin, the Field Visualizer is the tool for actually visualizing the field. After all, what’s better than 1 field detector? How about 6, 9, or even …

(*****) Field Meter PRO by MidWest Gadgets

Field Meter Pro [image] INTRODUCTION Hammy, not being able to measure the rapid duty cycle on a few devices came up with a solution to that problem, thus the development of the Field Meter Pro by MidWest Gadgets. This unit has evolved to answer the need for a quantitative, repeatable field strength measurement for 13.56 MHz High Frequency (HF) NFC. It’s the next step up from the Non Pro version, adding the critical analogue component. This is the hardware that finally allows us to stop guess…

(*****) 13.56Mhz Field Meter by MidWest Gadgets

13.56Mhz Field Meter [17436620454973538894836411570184] Love this picture, one of the funniest product photos I’ve seen INTRODUCTION These field meters are tuned to detect any standing NFC field. They will display a value of 1/10vm or 1mH (megaHammy). They come in 4 different colors (Red, Orange, Blue, Green) that will be selected at random. (if you put in your order notes prefference i will do my best to accomodate). I cannot guarantee accuracy. But i can guarantee that the meters …

(*****) RFID Field Detectors

RFID Field Detectors Originally, I saw a cheap field detector on Aliexpress, and I thought I would give it a try. I then thought I should put together a quick review, THEN I thought, well I actually have a few different ones I should review them all together So here we are DT Diagnostic Card USD$20 or Free $ with DT implant [image] X Field Detector USD$15ea or Free $ with DT implant [image][image] Proxgrind RF Field detector USD$15 [image] RFID Field Detector USD $10 [image] Resu…