NFC Signal Strength Test Card 13.56MHz – Passive NFC Field Tester

NFC Signal Intensity Detection Card – Product Description

This is a professional 13.56 MHz NFC signal strength test card designed to visually measure the intensity of an NFC (Near Field Communication) electromagnetic field.

Key Features & Specifications:

• Operating Frequency: 13.56 MHz (standard NFC frequency)
• Power Supply: Fully passive – harvests energy directly from the NFC reader field (no battery required)
• Signal Visualization: Array of LEDs arranged in a triangular pattern indicating field strength
  • LOW zone – minimal signal (few LEDs lit)
  • HIGH zone – strong signal (many LEDs lit)
• Additional Interfaces:
  • Single LED test point
  • GND (ground)
  • UART output (for advanced diagnostics)
• Applications:
  • Troubleshooting NFC readers and POS terminals
  • Mapping effective reading range
  • Debugging NFC/RFID installations
  • Antenna placement optimization
• Design: Credit-card size, durable PCB construction with clear LOW–HIGH scale

Ideal tool for system integrators, field technicians, and NFC developers.