Kantech ioProx P40KEY Compatible Key Fob — Flipper Zero Compatible (26-bit XSF)

Our Kantech ioProx P40KEY compatible key fobs are blank, fully rewritable, and designed to work with tools like Flipper Zero, Proxmark3, and other LF (low frequency) writers. Program them infinitely to match your Kantech ioProx systems or use them for testing, provisioning, and legitimate cloning where you are authorized to do so.

Key Features

• Flipper Zero compatible: Easily read, write, emulate, and reprogram using the Flipper Zero 125 kHz app.
• Rewritable: Tactically blank fobs you can rewrite indefinitely for maintenance, testing, or provisioning.
• Durable form factor: Attaches to key rings, badge reels, clips, or lanyards and built for daily use.
• Management & consumer use: Suitable for property managers ordering bulk credentials and consumers ordering single fobs.
• Seamless integration: Works with ioProx readers and integrates with existing badge populations when programmed to matching formats.

Technical Specifications

• Format: XSF — 26-bit Wiegand (ioProx / P40KEY compatible)
• Dimensions: 1.96" × 0.79" × 0.19" (standard proximity key tag)
• Read Range: Up to ~2.5 in (63.5 mm) — reader-dependent
• Condition: Brand new, blank / unprogrammed (unless ordered programmed)
• Product Type: Proximity Key Tag (Kantech-compatible)

Use Cases

• Apartment & condo access control (leasing office provisioning)
• HOA and multi-family property credential management
• Event security, contractor access, and temporary credentials
• Time & attendance systems and facility access
• Hobbyist testing and development with Flipper Zero / Proxmark3

How They Work with Flipper Zero

These fobs are blank and ready to be written using Flipper Zero’s 125 kHz features or other LF programmers. Behavior and success depend on the target reader and configuration — always ensure you are authorized to clone or write credentials on the target system.

Appearance & OEM Note

The duplicate fob may look similar to OEM Kantech ioProx tags but is not manufactured by Kantech. If you require genuine OEM P40KEY fobs for appearance or warranty reasons, purchase directly from an authorized Kantech supplier.

Ordering Options

We support both bulk orders for property managers (10, 25, 50, 100+) and individual consumer orders. If you want us to program units for you instead of self-programming with a Flipper Zero, we offer programming services — please include your desired FC/CN (facility code / card number) ranges when ordering.

Need a Single Duplication by Serial?

If you're a consumer looking to duplicate a single ioProx/P40KEY fob by serial number, use our consumer service: Duplicate Your ioProx Key Fob (by Serial Number) .

Support & Contact

📩 For questions, bulk pricing, or programming requests, email support@sumokey.com or call (949) 505-5627.

Note: Compatibility and read range can vary by reader model and installation. If ordering for a managed property, include reader model and any sample badge details for a faster compatibility check.