125kHz RFID Proximity Keyfob (Blue Drop-Shape Token)

Product Overview

The TAG03A 125kHz RFID Proximity Keyfob is a compact, high-durability contactless access credential. Operating at the industry-standard 125 kHz (EM4100 / TK4100 protocol) low frequency, this keyfob is engineered for swift user authentication, residential access management, commercial building entry, and perimeter gate control.

Molded from ultrasonic-sealed, impact-resistant ABS plastic in high-visibility blue, the TAG03A features a robust reinforced key ring eyelet fitted with a split metal ring for immediate attachment to everyday keychains. Equipped with a passive low-frequency copper transponder coil and laser-etched identification numbering on the casing, it enables instantaneous contactless badge enrollment into access management databases. Its sealed waterproof and dustproof body requires no internal batteries, deriving operating power directly from proximity reader fields across a consistent read range of 2 to 5 cm.

Key Features

• Universal 125 kHz Compatibility: Seamlessly works with all standard 125 kHz EM-Marin, EM4100, and TK4100 proximity readers.

• Compact Drop-Shaped Form Factor: Lightweight, pocket-friendly token designed for everyday key ring carry.

• Ultrasonic-Sealed ABS Housing: Fully waterproof, dustproof, and shockproof construction built to survive heavy drops and daily handling.

• Laser-Etched ID Code: Pre-printed external numbering for fast visual identification and manual software enrollment.

• Integrated Metal Key Ring: Comes pre-fitted with a heavy-duty split key ring for secure attachment to keychains and badge clips.

• Passive Induction Power: Battery-free design powered wirelessly via reader electromagnetic induction for unlimited operational life.

• Instantaneous Read Response: Rapid read transactions within 100 milliseconds across a 2–5 cm scanning distance.

Compatible Devices

• Standalone and Networked RFID Proximity Readers (Wiegand 26-bit / 34-bit)

• Biometric and RFID Access Control Terminals (ZKTeco, Dahua, Hikvision, Anviz)

• Video Intercom Outdoor Door Stations and Keypad Card Readers

• Electronic Magnetic Locks and Strike Door Controller Kits

• Automated Vehicle and Pedestrian Barrier Gate Access Terminals