Collection: 37-Bit Prox & iCLASS Cards (H10302, H10304, P10004)

A 37-bit card carries a much larger number than a 26-bit card, which cuts the chance of duplicates between sites. Several manufacturers and integrators built their own 37-bit format, though, and they do not mix. This page groups our 37-bit cards and fobs by format so you can match what your panel expects.

37-bit formats we carry

H10302: HID's open 37-bit format with no facility code. Identiv 4000 clamshell and 4010S ISO PVC.
H10304: HID's 37-bit format with a facility code. Identiv 4010 ISO PVC.
P10004 (PCSC): PCSC PC-23 ProxCard II clamshell, PC-27 ISO card, PC26A ProxKey III fob, PC-73 and PC-74 AWID cards, plus 13.56 MHz iCLASS options (99-04090/37 clamshell and ISC K2 2000PGGMN).
S10401 (AMAG): Identiv 4000 clamshell and 4010 ISO PVC.
A901058A (ADT): Identiv 4010S ISO PVC and 4082 key fob.
I10304 (Interlogix / GE Topaz): Identiv 4082 key fob.
Bosch: ACD-IC2K37-50 iCLASS 2K card in 37-bit.

How to identify your card

Start with the part number on an existing card, box or invoice. Then confirm the technology: prox (125 kHz) or iCLASS (13.56 MHz). A PCSC prox card and a PCSC iCLASS card share P10004, but they need different readers. The AWID PC-73 and PC-74 cards also need AWID-compatible readers, not standard HID prox readers.

Send us the format, any facility code and your starting number with the order. Most of these items come in packs of 100.

FAQ

Is H10302 the same as H10304?

No. Both are 37 bits, but H10302 has no facility code and H10304 does. Ordering the wrong one gives you cards that read but do not match any record in your software.

Can my 26-bit reader read a 37-bit card?

The reader usually passes whatever bits it reads. The question is your panel. If it is set for 26-bit only, it will reject 37-bit data until the format is added.