RapidPROX® SlimLine™ ULTRA™ Proximity Key Fobs come standard with a professional, inkjet number printed on each fob, while optional laser-engraving is available for an additional fee. A Nickel-Plated Steel Split Ring is also included.  For more detailed information, click on the next PDF tab.

***For customers needing Format H10302, enter "00" in the facility code field so that you may continue with checkout.  No facility code will be encoded.***

The RapidPROX® ULTRA™ 125kHz Proximity Key Fob stands out as a top-performing and widely trusted credential for reliable access control management. Designed for full compatibility with standard 125kHz proximity systems, this compact and durable fob ensures consistent read accuracy and dependable performance—even in high-traffic or demanding environments. Serving as a cost-effective alternative to the HID 1346LNSMN, the ULTRA fob delivers equivalent functionality without the premium price tag, making it an ideal solution for organizations focused on value and efficiency.

Built to withstand daily use, the RapidPROX ULTRA key fob features a slim, rugged profile that easily integrates with keyrings, lanyards, and other badging attachments for convenient, contactless entry. Proudly manufactured in the USA under strict quality standards, each fob is engineered for long-term durability and backed by over three decades of industry expertise. Its proven performance and customer-approved reliability make it a trusted choice across a variety of environments, including commercial offices, residential communities, educational institutions, and healthcare facilities.

Customization is simple and flexible, with encoding options available for multiple bit formats, facility codes, and sequential numbering ranges—ensuring smooth integration into existing access control systems. With standard 48-hour processing and same-day service available, RapidPROX makes it easy to deploy new credentials or replenish inventory quickly. Every ULTRA key fob is covered by a Lifetime Warranty, reinforcing a commitment to quality and long-term performance you can depend on.

For businesses seeking a dependable, American-made replacement for higher-priced branded credentials, the RapidPROX ULTRA Proximity Key Fob delivers exceptional value—combining durability, performance, fast turnaround, and proven reliability into one of the most trusted access control solutions available today.