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GAO Tek 13.56 MHz. RFID HF M4 Reader Module

ID: 713010tek

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The SkyeModule M4 is a feature-rich, easy-to-use HF RFID reader module specially designed to serve three distinct market applications: product authentication, access control and contactless payment.

The SkyeModule M4 provides industry-leading security and sophisticated features normally associated with much more expensive readers at a ground-breaking price. It’s small size and intelligent software ease integration and provide customers with a significant cost-performance advantage.


  • Small footprint – about the area of three standard postage stamps
  • reatest tag compatibility and performance with Tagnostic® & TagIQ™
  • Minimal power consumption
  • UART (TTL) Host Interface
  • 4 General Purpose I/O
  • Simple and intuitive API


With three selectable personalities, the SkyeModule M4 has been created specifically for changing and diverse applications. The M4 is an optimal solution for the following:

  • Access Control
  • Product Authentication & Anti-counterfeiting
  • Contactless Payment

Technical Specifications

Frequency Antenna Options Communication
13.56 MHz ± 7 kHz Ω 2-pin header Host: UART (TTL) 9.6 – 38.4 kbps
output for external connection I/O connector: 24-pin header or 8
Internal or 50 through-holes
4 programmable GPIO pins
Physical 4 mounting holes Power Pre-Scan Testing1
Length: 39 mm Supply Voltage: 5.0 V ± 10% FCC 15.225 EN 300-330
Width: 36 mm Output Power: 50 – 200 mW EN 301-489 EN 61000-4-3
Height: 11.3 mm
(5 mm w/o connectors)
Current Consumption:
Sleep Mode: 4 mA
Idle Mode: 75 mA
Scan Mode: 130 mA
(230 mA w/internal antenna)
More regional pre-scans to follow
Storage Temperature: -20°C to 85°C
Operating Temperature: -10°C to 70°C


Specification Product Authentication Contactless Payment Access Control
Air Interface Protocol ISO 15693 ISO 14443A/B (parts 1-3) ISO 14443A/B (parts 1-3)
• TI Tag-It HF-I+*
• TI Tag-It HF-I Pro / Std
• NXP I-Code SLI SL2(ICS20)*
• ST LRI-512
*Support secure memory
• Mastercard PayPass(Magnetic Stripe Protocol Ver 3.1)
• Visa PayWave(Magnetic Stripe Data Application Protocol Ver 1.4.2)
• American Express ExpressPay(Proximity ICC Payments Application Level Protocol Ver 1.7)
• Discover Contactless Payments(Discover Network RF Contactless Payment Ver 1.01)
• NXP MIFARE (Ultralight,Classic 1k, Classic 4k)
• Infineon MIFARE Classic 1K SLE66R35
• ST SRI512
Read Range 14 cm with 85 x 85 mm
external antenna
Internal antenna: 4.5 cm
8cm with 85x85mm external
8cm with 85x85mm
external antenna
Security SkyeTek secure memory:
• AES-128, 192, and 256
• SHA-2
Supports security as part of proprietary
payment protocols

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