Enforcer PR-K1S1-A EM125 Proximity Card Group
The Enforcer PR-K1S1-A proximity card group is used for adding or replacing card credentials on compatible SECO-LARM and ENFORCER access control systems. This listing is written for the 100 cards group shown in the product name. The card technology is EM125 / 125 kHz proximity, which is common on many SECO-LARM keypad/card-reader and Wiegand reader installations used at pedestrian entries, gate access points, office doors, apartment entrances, storage facilities, and controlled commercial access points.
These cards do not operate a gate or door by themselves. A PR-K1S1-A card is presented to a compatible reader, and the reader or access controller decides whether to activate a door strike, maglock, gate operator input, barrier gate input, or other access relay. For that reason, the most important ordering detail is not the physical card shape alone; it is the credential technology accepted by the installed reader. If the existing system is built around SECO-LARM EM125 card readers, these cards are commonly used as additional credentials for new users, replacement cards, tenant turnover, employee changes, and property management inventory.
Correct fitment matters because access cards that look similar are not always interchangeable. HID Prox, MIFARE, iCLASS, DESFire, encrypted smart cards, Bluetooth credentials, and garage-door RF transmitters use different technologies. A 125 kHz EM card must also be enrolled properly through the reader or controller programming process. Before ordering, verify the reader model, the accepted card type, and whether the site administrator has permission to add new card numbers to the system.
Features & Specifications
| Manufacturer | SECO-LARM / ENFORCER |
| Product Type | EM125 proximity access card group |
| Part Number | PR-K1S1-A |
| Gate Openers Unlimited MFGID | EFR-PR-K1S1-A-100 |
| Card Technology | 125 kHz EM / EM125 proximity |
| Credential Type | Proximity card |
| Group Quantity | 100 cards, based on the uploaded product name |
| Application | Access control card reader and keypad/card-reader systems |
| Programming | Cards must be added to the compatible reader, keypad, or controller |
| Not Compatible With | HID Prox, iCLASS, MIFARE, DESFire, Bluetooth, Wi-Fi, garage door radio remotes, or unrelated Wiegand formats unless the system specifically accepts EM125 cards |
| Notes | Official PR-K1S1-A manufacturer references commonly describe cards as sold in packs of ten; verify store group quantity and enrollment method before ordering |
Compatible With
Use this compatibility section as a reader-family guide, not as a substitute for checking the access control manual. PR-K1S1-A cards are intended for SECO-LARM proximity readers that use 125 kHz EM125 card technology.
- All SECO-LARM proximity readers that accept PR-K1S1-A 125 kHz EM125 cards, when the reader/controller is programmed for the card.
- ENFORCER PR-3125-PQ stand-alone / Wiegand proximity reader with EM 125 kHz card support.
- ENFORCER PR-3123-PQ stand-alone mullion / Wiegand proximity reader, when configured for EM125 card credentials.
- ENFORCER PR-2121-PQ mini Wiegand proximity reader family using EM 26-bit / 125 kHz EM cards.
- ENFORCER PR-2123-PQ mullion Wiegand proximity reader using 125 kHz EM cards.
- ENFORCER PR-2125-PQ standard Wiegand proximity reader using 125 kHz EM cards.
- ENFORCER SK-1131-SPQ indoor illuminated access control keypad with built-in 125 kHz EM125 proximity reader.
- ENFORCER SK-1123-SPQ vandal-resistant outdoor access control keypad with built-in 125 kHz EM125 proximity reader.
- ENFORCER SK-4131-SPSQ split-series keypad with proximity card reader, when programmed for EM125 card use.
- Select SECO-LARM / ENFORCER keypad and proximity reader combinations that list PR-K1S1-A as an accessory or use 125 kHz EM proximity cards.
- Older or discontinued SECO-LARM proximity reader systems may accept these cards if the reader/card format is EM125 and the card can be enrolled; verify the reader model and manual.
Also Known As / Related Part Numbers
The following numbers and terms are commonly associated with this card family. Some are exact card references, while others are related search variations or credential-family references.
- PR-K1S1-A
- PRK1S1A
- PR K1S1 A
- SECO-LARM PR-K1S1-A
- ENFORCER PR-K1S1-A
- EFR-PR-K1S1-A
- EFR-PR-K1S1-A-25
- EFR-PR-K1S1-A-50
- EFR-PR-K1S1-A-75
- EFR-PR-K1S1-A-100
- EM125 proximity card
- 125 kHz EM proximity card
- 125kHz EM card
- EM 125 kHz access card
- SECO-LARM proximity card
- ENFORCER proximity card
- PR-K1K1-AQ proximity keyfob (related credential, not the same card)
Technician Note
When a customer says a card will not read, check the installed reader technology before blaming the card. A reader designed for another credential format may not react at all to an EM125 card. If the reader beeps or flashes but does not grant access, the card may be readable but not enrolled, assigned to the wrong user level, or blocked by schedule or controller programming.
Before Ordering Checklist
- Confirm the installed reader accepts 125 kHz EM125 proximity cards.
- Verify the reader or keypad is a SECO-LARM / ENFORCER proximity model or another system specifically documented for EM125 cards.
- Confirm the quantity shown in this listing matches the card group needed for the site.
- Make sure the system administrator can enroll new cards into the reader or controller.
- Do not order these cards for HID, MIFARE, iCLASS, DESFire, Bluetooth, or garage-door remote systems unless the system manual specifically supports EM125 cards.
Professional Advisory
For access-controlled gates, doors, and community entries, credential programming should be handled by the property manager, system administrator, or a qualified access control technician. Do not bypass locks, gate safety devices, entrapment protection, or access control relays to make a credential work. If the reader wiring, relay output, power supply, door hardware, or gate operator input is not functioning correctly, have the system inspected by a qualified technician.
Product Questions
Is this listing for 100 Enforcer PR-K1S1-A cards?
This listing is written for the 100 card group shown in the uploaded product name. Because the manufacturer PR-K1S1-A is commonly referenced as a pack-of-10 card item, the group quantity should be verified against the store packaging before upload or fulfillment.
What type of reader do these cards work with?
These cards are for SECO-LARM and ENFORCER proximity readers that accept 125 kHz EM125 cards. They must be enrolled into the reader, keypad, or access controller before use.
Will these work with HID, MIFARE, iCLASS, or DESFire readers?
No. PR-K1S1-A cards are EM125 / 125 kHz proximity cards. They should not be ordered for HID Prox, MIFARE, iCLASS, DESFire, Bluetooth, or other access credential technologies unless the system documentation specifically says it accepts EM125 cards.
Can these cards open a gate operator by themselves?
No. These are access credentials, not gate operator transmitters. They work only when presented to a compatible proximity reader that is connected to the gate, door, or access control system.
Do the cards arrive already programmed?
They are normally added to the access system during installation or user setup. Programming depends on the reader or keypad model, the controller setup, and the site administrator permissions.
