Tiny RFID Field Detection Card – Proxgrind Frequency Tester Keychain for IC/ID Access Control & Reader Testing

Whether you're a pentester, a hardware hacker, or just RFID-curious, this Tiny Frequency Detection Card from Piswords packs a surprising punch. Designed to fit right on your keychain or phone as a pendant, this pocket-sized gadget is your go-to tool for detecting RFID fields on the fly—no batteries required, no nonsense included. 🛰️ What It Does: Instant Frequency Detection: Quickly detect Low Frequency (125KHz) and High Frequency (13.56MHz) RFID fields. An LED lights up to show you which frequency is present—so simple, even your coffee can’t compete. No Batteries Needed: Yup, you read that right. This sleek little device is powered by the RFID field itself. That means zero maintenance and unlimited field checks, wherever you go. Pentest-Ready: Scouting access control readers? Testing for unauthorized readers in your environment? This is your stealthy new sidekick. Developer-Friendly: Debug your RFID hardware or firmware in seconds. Keep it handy for labs, testing benches, or field deployments. 📏 Key Features: 🔑 Keychain/Pendant Design – Clip it to your keys or mobile phone for RFID awareness on the go 🚪 RFID Field Detector for IC & ID Access Control Systems ⚡ Passive Operation – Needs no external power or batteries 🔄 Dual Frequency Detection – 125KHz & 13.56MHz support 🔬 Perfect for Security Research, RFID Development, or Access Testing 🧲 Ideal For: Ethical Hackers & Penetration Testers RFID System Developers Smart Home Integrators Tech Enthusiasts & Tinkerers Students in IoT or Embedded Systems From tech labs to keychains, this Proxgrind RFID Field Detector is proof that great things really do come in small, signal-sensitive packages. 🧩🧲