Paradox Proximity (C702 / C704 / C705) Compatible Cards & Fobs
The alarm-panel crossover: Paradox's C702 cards and C704/C705 teardrop fobs arm systems and open doors on Digiplex and Magellan installations, using Paradox's compact 24-bit encoding at 125 kHz.
Does American Key Cards make Paradox Proximity (C702 / C704 / C705) compatible cards?
Yes — American Key Cards supplies unbranded Paradox Proximity (C702 / C704 / C705) compatible cards and key fobs (AKC Paradox-Compatible Proximity Card), encoded to your facility code and card-number range and ready to use on your existing Paradox Security Systems readers. No hardware changes and no dealer account required.
- 125 kHz
- Frequency
- RFID prox
- Technology
- 2
- Bit formats
- 5+
- OEM part nos.
- American Key Cards
- Order from
Paradox came at access control from the alarm side, which shaped everything about its credential line: a C704 fob on a tenant's keyring typically both disarms the alarm partition and unlocks the door, all through one 125 kHz read. The encoding is Paradox's 24-bit layout — compact, panel-friendly, and specific enough that generic prox stock won't register — with some reader configurations accepting standard 26-bit alongside it. Property managers running Digiplex-secured buildings know the routine: tenants lose the teardrop fobs constantly, and every replacement has to enroll in both the alarm and access sides of the panel. Our unbranded Paradox-compatible cards and fobs are programmed to your system's encoding and verified before shipment, so enrollment through your keypad or Babyware follows the same procedure as with original stock.
Paradox Proximity (C702 / C704 / C705) specifications
- System brand
- Paradox Security Systems
- Technology
- Passive RFID proximity
- Frequency
- 125 kHz
- Credential platform
- Standard 125 kHz proximity IC encoded in the Paradox 24-bit format
- Bit formats
- Paradox 24-bit proprietary format, 26-bit Wiegand (H10301, reader-dependent)
- OEM part numbers
- C702, C704, C705, DG457BT, REM2
Specifications reviewed August 2026
Our compatible Paradox Proximity (C702 / C704 / C705) credentials
American Key Cards manufactures unbranded credentials engineered to work with your existing Paradox Security Systems readers — no hardware changes, encoded to your facility code and card-number range before they ship.
Full specifications, form factors and ordering FAQ: Specialty & legacy prox credentials
American Key Cards is an independent manufacturer of unbranded, compatible-by-specification credentials. We are not affiliated with, endorsed by, or sponsored by Paradox Security Systems, and we never supply OEM-branded product — for brand-original credentials, order from Paradox Security Systems or an authorized dealer. Brand names appear only to identify compatibility, and all trademarks remain the property of their respective owners.
Where Paradox Proximity (C702 / C704 / C705) is used
- Residential and small-commercial Paradox alarm/access hybrid systems
- Multi-unit residential complexes running Digiplex or Magellan controllers
- Replacement fobs for C704/C705 teardrop keytags lost by tenants
- Retrofit installations requiring additional Paradox-encoded credentials
Works with these readers
Related formats
You might also need
HID Prox H10301 (Standard 26-Bit)
The most widely deployed proximity format in North America: 26-bit Wiegand — an 8-bit facility code plus 16-bit card number — on the 125 kHz HID Prox platform, live on millions of doors.
View compatible cardsRosslare Proximity
The globally deployed value platform: Rosslare's readers and panels run on standard EM-class 125 kHz credentials in 26-bit Wiegand — open, interoperable, and easy to keep supplied anywhere in the world.
View compatible cardsKantech ioProx (XSF / 26-bit)
Kantech's dual-personality credential: the proprietary XSF format for EntraPass systems and a standard 26-bit Wiegand encoding on the same card — one credential that speaks both languages, all over North American commercial buildings.
View compatible cardsParadox Proximity (C702 / C704 / C705) — FAQ
What format do Paradox C702/C704 credentials use?
Paradox's own 24-bit encoding at 125 kHz, read by PR-EG and related readers attached to Digiplex/Magellan panels. Some reader configurations also pass standard 26-bit Wiegand; your panel setup determines what enrolls.
Can you replace a lost C704 teardrop fob?
Yes — that's the single most common Paradox order we see. We program compatible teardrop-style fobs to your system's encoding; you enroll them through the panel exactly as you did the originals, and the lost fob gets deleted from the user slot.
Do Paradox readers accept standard 26-bit cards from other systems?
Only when the installation was configured for Wiegand 26-bit input — some are, most residential ones aren't. Send us your reader model and a photo of a working credential and we'll tell you exactly what your system accepts before you order.
Will compatible credentials work for both the alarm and door functions?
Yes. The panel treats an enrolled credential identically regardless of who manufactured it — arming, disarming, and door release follow the user permissions you assign at enrollment, same as with original Paradox stock.