Tiny Frequency Detection Card Proxgrind RFID Field Detector Keychain Mobile Phone Pendant IC, ID Access Control Read head Testing

Tiny Frequency Detection Card Proxgrind RFID Field Detector Keychain Mobile Phone Pendant IC, ID Access Control Read head Testing                      

Introduction
The RFID Field Detector detects and displays the presence of Low Frequency (125KHz) and High Frequency (13.56MHz) fields.

Designed to be compact and discrete, it fits neatly onto your keyring. The RFID Field Detector is an indispensable tool:

Pen testing: Perform rapid access control reconnaissance

Development: Debug your hardware / firmware

The device requires no batteries. When in the presence of an RFID field, an LED indicates the frequency of the field.