BYX TK4100 ABS RFID Keyfob-3# for Secure Access Control

Durable BYX TK4100 ABS RFID keyfob for door access control. Waterproof, portable, and reusable. Shop NEOTECH UAE today for fast delivery.

Overview

The BYX Smart TK4100 ABS Keyfob-3# is a compact, durable 125kHz RFID tag designed for secure and contactless access control.
Built using strong ABS housing and the TK4100 chip, it’s perfect for office entry systems, residential buildings, hotels, schools, and more.

Product Description

This RFID keyfob uses TK4100 read-only chip technology, enabling quick, contactless identification with compatibility across all 125kHz EM-format access readers.
Its ergonomic shape, colorful ABS shell, and metal keyring loop make it a portable and user-friendly alternative to traditional access cards.

Key Features

• Operates on 125kHz (low frequency)

• TK4100 chip (EM4100 compatible)

• Waterproof, dustproof ABS casing

• Compact, lightweight & stylish design

• Unique 10-digit ID code (factory pre-programmed)

• Compatible with all standard 125kHz access control systems

• Available in multiple colors for user differentiation

Specifications

• Chip Type: TK4100 (EM4100 compatible)

• Frequency: 125kHz

• Protocol: Read-only, pre-coded 64-bit ID

• Material: ABS plastic

• Size: Approx. 40 × 32 × 4 mm

• Operating Temp: -25°C to +70°C

• Color Options: Blue, red, yellow, black, green, grey (customizable)

• Mounting: Metal keyring (included)

• Data Retention: Over 10 years

• Read Distance: 2–10 cm depending on reader

Supported OS / Application / Industries

• Reader Compatibility: All EM-compatible 125kHz RFID readers

• Applications:

  • Office and building access control

  • Residential complexes

  • Hotel room keys

  • School ID management

  • Membership & loyalty systems

• Industries:

  • Real Estate & Property

  • Hospitality

  • Education

  • Corporate Security

  • Smart Home

Benefits & Compatibility

• Fully compatible with ZKTeco, Hikvision, BYX, Suprema, and other RFID reader brands

• No battery required — passive, maintenance-free operation

• Keyfob format reduces lost or damaged cards

• Supports color-coded user grouping

• Easy to integrate into existing Wiegand-based access systems

Purpose of Use

Perfect for use as a reliable, low-cost access token for staff, guests, tenants, or students needing contactless, keychain-ready RFID entry.

How to Use

1. Register keyfob ID with your access control system

2. Assign user permissions

3. Tap keyfob on RFID reader to gain entry

4. Attach to keychains, lanyards, or ID clips

Packaging / Weight / Dimensions

• Unit Size: 40 × 32 × 4 mm

• Weight: ~5g

• Packaging:

  • 100 pcs per bag

  • Custom logo printing available (MOQ applies)

Warranty & FAQs

• Warranty: 1-year manufacturer warranty

• FAQs:

  • Can I rewrite the chip? – No, it’s read-only (factory-coded)

  • Can I print my logo? – Yes, pad or UV printing is available

  • Can I assign different permissions to each keyfob? – Yes, via your access control system

Performance, Quality, Durability & Reliability

The ABS shell provides high-impact resistance and weather protection, ensuring this keyfob remains functional in daily-use and outdoor environments.

Best Price Guarantee

NEOTECH delivers the UAE’s best price on high-quality RFID keyfobs — bulk discounts available for schools, property managers, and system integrators.

Shop Today & Receive Your Delivery Across the UAE

We ship fast to Dubai, Abu Dhabi, Sharjah, Ajman, and all other Emirates.
📦 International orders supported with custom branding available.

Request for Customer Reviews and Testimonials

Already using BYX TK4100 keyfobs in your building or business? Share your review or photo and get featured on NEOTECH!

After Sales Support

We provide:

• Encoding tools (if needed for dual-frequency setups)

• System compatibility advice

• Color and logo customization support

Get in Touch

Looking to outfit your team, tenants, or students with secure keyfobs? Contact NEOTECH for a tailored quote or sample pack.

Stock Availability

✅ In stock — ships within 24–48 hours
🎨 Custom print or color mix: 5–7 days turnaround

Disclaimer

TK4100 is read-only and cannot be reprogrammed. For rewritable or encrypted formats, check our MIFARE or UCODE® card options.