RFID 125KHz Handheld Copier Reader & Writer

Take full control of your 125KHz RFID access cards and key fobs with this compact, standalone handheld duplicator. Whether you need to back up an existing card or program a blank T5577/EM4305 tag, this device makes the process fast, simple, and completely PC-free — though USB connectivity is available when needed.

Key Features

Standalone Operation: No PC or software required — just two buttons and built-in LED/buzzer indicators guide you through every step.
Wide Compatibility: Reads EM4100 and TK4100 cards/fobs; writes to T5577, EM4305, CET5557, CET5200, and EM4205 blanks.
Reading Range: 0–6 cm induction distance for reliable, close-range reads.
USB Plug & Play: Connects to Windows 2000, XP, 7, 8, and 10 via USB cable — driverless, no installation needed.
Durable & Long-Lasting: Rated for over 20,000 read/write cycles.
Ergonomic Design: Slim handheld form factor (115 × 70 × 30 mm, 85 g) fits comfortably in your hand for extended use.
Visual & Audio Feedback: Green LED + buzzer confirms a successful read; yellow LED + buzzer confirms a successful write.
Power: 2 × AAA batteries (3V) — batteries not included.

Technical Specifications

Frequency	125 KHz only
Read Formats	EM4100, TK4100 (and compatible)
Write Formats	T5577, EM4305, CET5557, CET5200, EM4205
Reading Distance	0–6 cm
Connection	USB (Plug & Play, driverless)
Power Supply	3V (2 × AAA batteries, not included)
Read/Write Cycles	> 20,000 times
Dimensions	115 × 70 × 30 mm
Weight	85 g

How to Use

Step 1 — Read a Card

Place your EM4100 or TK4100 card/fob in the induction area and hold the left (Read) button. A green LED flash + buzzer tone confirms a successful read. A blinking power light indicates the read was unsuccessful — reposition the card and try again.

Step 2 — Copy to a Blank Card

After a successful read, place a compatible blank card (T5577, EM4305, etc.) in the induction area and hold the right (Copy) button. A yellow LED flash + buzzer tone confirms a successful write. A blinking power light indicates the copy was unsuccessful.

What's in the Box

1 × RFID 125KHz Handheld Copier Reader/Writer
Note: No batteries, cards, or tags included. No retail box — item is securely packed.

Available Options

Writer Only
Writer + 5 Key Fobs Bundle

Frequently Asked Questions

Q: What RFID card formats does this 125KHz copier support?

A: This RFID handheld copier reads EM4100 and TK4100 format cards and key fobs. For writing, it is compatible with blank T5577, EM4305, CET5557, CET5200, and EM4205 cards/tags. It operates exclusively at 125KHz — it cannot read or write 13.56MHz (HF) cards.

Q: Do I need a computer to use this RFID duplicator?

A: No — this RFID copier writer operates completely standalone using just 2 × AAA batteries (not included) and its two onboard buttons. A USB connection to a PC is also available (Plug & Play, driverless on Windows XP through 10) for additional functionality, but is not required for basic read/copy operations.

Q: Why might a copied card fail to work in an access control system?

A: Some access control systems use firewalls, rolling codes, or special encryption chips that prevent standard duplication. If a copied card swipes only once or does not work at all, the system likely has anti-duplication measures in place. We recommend confirming your card type and access system compatibility before copying. Cards or tags are not included with the duplicator.

Q: Can this device copy cards at frequencies other than 125KHz?

A: No. This duplicator is designed specifically for 125KHz RFID cards and tags only. ID cards can come in various frequencies (125KHz, 250KHz, 350KHz, 500KHz). If your card operates at a different frequency, this device will not be able to read or copy it. Ensure your cards are confirmed 125KHz before purchasing.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.