HID 1346 ProxKey III Key Fob - Compact Proximity Keyfob for Access

In this review of the HID 1346 ProxKey III key fob, the bottom line is simple: this is a compact, dependable proximity credential for organizations that need an easy to manage keyfob on a ring. The reviewer found the fob small enough to carry on daily key rings while still offering universal compatibility with HID proximity readers and an external printed number that makes identification and control straightforward for administrators. For facilities standardizing on HID proximity formats, this keyfob delivers the features required without extras that complicate deployment.

Key Features

• Compact size: At roughly 1-1/4 in by 1-1/2 in and thin profile, it fits comfortably on a key ring for everyday use.
• Universal compatibility: Works with HID proximity card readers so it integrates into many existing access systems without reprogramming reader hardware.
• Visible ID number: Each fob provides an external number for quick visual identification and easier inventory or user management.
• Large code space: Supports formats up to 85 bits with over 137 billion codes, reducing the chance of collisions in large systems.
• Convenient deployment: Sold in bulk packs, these fobs are suitable for provisioning staff, contractors, and recurring replacements.

Who It's For

The HID 1346 ProxKey III is aimed at facilities managers, security integrators, and businesses that already use HID proximity readers and need a small, low-profile credential that users will keep on a key ring. It is especially well suited to offices, residential complexes, and light industrial sites where straightforward integration and visible ID numbers matter.

It is not the best choice for organizations that require multi-technology credentials, cardholder photos, or contactless smart card features beyond standard HID prox formats. If your system needs encrypted smart card capabilities, a different credential family should be considered.

Pros & Cons

Pros

• Compact and lightweight design makes it highly portable on a key ring.
• Broad compatibility with HID proximity card readers simplifies rollout into existing systems.
• External printed number aids administration and inventory control.
• Support for up to 85-bit formats provides a very large code space for deployments.

Cons

• Limited to HID proximity technology and does not provide smart card encryption or multi-technology functions.
• Basic plastic housing lacks advanced durability features for very harsh environments.

Specifications

Product	ProxKey III key fob
Dimensions	1-1/4 in x 1-1/2 in x 15/64 in
Compatibility	HID proximity card readers
Format support	Up to 85 bits, over 137 billion codes
Identification	External printed number for easy ID
Use case	Key ring credential for access control

Our Verdict

The HID 1346 ProxKey III is a practical, cost-effective proximity keyfob for organizations committed to HID prox readers; it combines a compact form factor, visible ID number, and a very large code space that reduces collision risk. For sites that need a simple, reliable keyfob to issue to staff and residents, it offers strong value, though sites requiring encrypted smart card features should choose a different credential family.

Frequently Asked Questions

Will this keyfob work with all HID readers?
It is designed to be compatible with HID proximity card readers that accept HID prox formats; verify reader model compatibility with your system documentation.

Can the external number be used to identify users?
Yes, the printed number provides a visible identifier to help administrators match fobs to users or inventory records.

Is this fob durable for outdoor use?
The fob is a basic plastic prox credential; it is fine for everyday carry but may not have the rugged housing required for very harsh outdoor exposure.