Honeywell / Northern N10002 34-Bit Prox Compatible Cards & Fobs
The Honeywell house format: N10002's 34-bit layout — a full 16-bit facility code plus 16-bit card number — anchors OmniProx readers and Pro-Watch deployments descended from the Northern Computers line.
Does American Key Cards make Honeywell / Northern N10002 34-Bit Prox compatible cards?
Yes — American Key Cards supplies unbranded Honeywell / Northern N10002 34-Bit Prox compatible cards and key fobs (AKC N10002-Compatible 34-Bit Card (ISO PVC or clamshell)), encoded to your facility code and card-number range and ready to use on your existing Honeywell (Northern Computers) 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
Northern Computers gave Honeywell its access-control backbone, and the N10002 format came with it: a tidy 34-bit structure that doubles the classic layout's facility-code space to 65,536 while keeping 65,536 card numbers per code. Buildings running Pro-Watch with OmniProx readers commonly issue this format decade after decade, because the panel configuration outlives every badge printer and staffing generation. Replacement is a programming exercise, not a hardware one: your facility code and the next card-number range fully define a batch. We manufacture unbranded, compatible-by-specification N10002 credentials — printable ISO cards, clamshells, or fobs — programmed to those values and verified against the 34-bit structure before they ship, so enrollment in Pro-Watch works exactly as it does with your existing stock.
Honeywell / Northern N10002 34-Bit Prox specifications
- System brand
- Honeywell / Northern Computers
- Technology
- Passive RFID proximity
- Frequency
- 125 kHz
- Credential platform
- Standard 125 kHz proximity IC programmed in the N10002 structure
- Bit formats
- 34-bit N10002 (Honeywell Northern format: 16-bit facility code, 16-bit card number), Standard 26-bit H10301 (also accepted by most OmniProx readers)
- OEM part numbers
- PX4H, PX4H25, PX-4-H-PW-SPEC, PVC425, PVC425S
Specifications reviewed August 2026
Our compatible Honeywell / Northern N10002 34-Bit Prox credentials
American Key Cards manufactures unbranded credentials engineered to work with your existing Honeywell (Northern Computers) readers — no hardware changes, encoded to your facility code and card-number range before they ship.
Full specifications, form factors and ordering FAQ: Standard 125 kHz proximity cards
American Key Cards is an independent manufacturer of unbranded, compatible-by-specification credentials. We are not affiliated with, endorsed by, or sponsored by Honeywell (Northern Computers), and we never supply OEM-branded product — for brand-original credentials, order from Honeywell (Northern Computers) or an authorized dealer. Brand names appear only to identify compatibility, and all trademarks remain the property of their respective owners.
Where Honeywell / Northern N10002 34-Bit Prox is used
- Commercial buildings using Honeywell OmniProx readers (PX4H family)
- Facilities running Honeywell Pro-Watch access software
- Replacement credentials for Northern Computers legacy installations
- Phased upgrades where older OmniProx readers remain in service
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 cardsHID Prox H10304 (37-Bit with Facility Code)
The structured 37-bit format: a 16-bit facility code (up to 65,535 sites) plus a 19-bit card number (up to 524,287 per site) on the 125 kHz HID Prox platform — 26-bit's layout, scaled for enterprises.
View compatible cardsCasi-Rusco C10106 (40-bit Proximity)
The format that outlived four corporate owners: Casi-Rusco's 40-bit C10106 layout still runs in government, campus, and enterprise buildings whose readers have said Casi-Rusco, GE, UTC, and Interlogix on successive purchase orders.
View compatible cardsHoneywell / Northern N10002 34-Bit Prox — FAQ
What is the N10002 format?
Honeywell/Northern's 34-bit proximity layout: a 16-bit facility code and a 16-bit card number framed by parity. It offers 256 times the facility-code space of standard 26-bit, which suited large Pro-Watch estates with many buildings.
Do OmniProx readers only accept N10002?
No — most OmniProx models pass standard 26-bit H10301 as well; the panel's configured format decides what's accepted. Sites occasionally run both during transitions. We program to whichever your system expects, confirmed before production.
Is N10002 the same as the 40-bit Casi/GE format?
No. N10002 is Honeywell/Northern's 34-bit structure; the C10106 40-bit layout belongs to the Casi-Rusco/GE lineage. They coexist in the market because both companies' installed bases are huge, but the formats are unrelated — check which your panel runs before ordering either.
What details do you need for a batch?
Facility code, card-number range, format confirmation (34-bit N10002 or 26-bit), and the form factors you issue. A Pro-Watch credential report or a photo of a working card covers it; we verify against the structure before anything ships.