AAS / Security Brand 40-F SecurePass Fob, HID compatible - 20Pk
The Security Brands 40-F SecurePass Fob is an HID-compatible RFID key fob credential for SecurePass CR readers and compatible 125 kHz HID-style proximity reader systems. It is typically used when residents, staff, or authorized users prefer a keychain credential instead of a wallet card. The fob is passive, so it does not use a replaceable battery, and the access decision is handled by the connected controller after the fob is read. Credential compatibility depends on the reader, controller, facility code, Wiegand bit format, and enrolled number range. The uploaded product name identifies this item as a 20 pack, while manufacturer-style references commonly list 40-F fobs in packs of 25, so package count should be verified against actual stock before publishing or fulfilling large orders.
For access-control work, the most common ordering mistake is assuming that every reader or credential with a similar housing will work with the existing site. The controller may need a specific Wiegand format, the reader may support one credential family but not another, and credentials may need the correct facility code, bit format, and number range. Use the full Security Brands model number and the installed system type when comparing this item to an older reader, card, fob, or tag.
Compatible With
- Security Brands SecurePass CR readers
- Security Brands 40-100 / 40-CR1 reader applications
- HID or HID-compatible 125 kHz proximity readers
- Select 26-bit Wiegand credential systems when facility code and fob numbering match
- Access-control systems programmed for the ordered credential format
Features & Specifications
| Manufacturer | Security Brands / American Access Systems |
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| Product Type | RFID proximity key fob credential |
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| Part Number | 40-F |
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| Application | Access control reader or credential for gates, doors, and controlled entry points |
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| Reader / Credential Type | SecurePass CR readers and HID-compatible readers |
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| Communication / Technology | 125 kHz HID-compatible proximity credential |
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| Mounting / Form Factor | Credential - keyring fob |
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| Package Contents | Uploaded row says 20 pack; manufacturer-style references commonly list packs of 25 |
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| Notes | Match the reader, credential format, Wiegand format, controller input, and programming before ordering. |
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Also Known As / Related Part Numbers
40-F, SecurePass Fob, SecurePass 40-F fob, RFID key fob, HID-compatible SecurePass fob, Security Brands proximity fob
Technician Note
When replacing a reader, take a photo of the old model label and wiring before removal. When ordering credentials, confirm the facility code, bit format, start number, reader family, and controller enrollment method. A credential can be the right physical style and still fail if the encoding does not match the site database.
Before Ordering Checklist
- Verify the full Security Brands / AAS model number.
- Confirm the credential family: HID, Secura Key, SecurePass, UHF vehicle tag, or another format.
- Confirm the controller accepts the required Wiegand format.
- For reader replacements, compare post mount, surface mount, keypad, and intercom requirements.
- For cards, fobs, and vehicle tags, confirm package quantity, facility code, and number range before ordering.
Professional Advisory
Access-control wiring, mag locks, electric strikes, and gate operator inputs should be installed in a code-compliant way. Disconnect power before wiring readers or controllers, and use a qualified access-control or gate technician when the system controls a vehicle gate, door lock, fire access function, or monitored safety device.
Important Ordering Warning
The uploaded item name says 20 pack, while Security Brands commonly lists model 40-F in packs of 25. Verify your actual stocked package count before publishing quantity-sensitive copy or filling a bulk order.
Product Q&A
What readers can use the 40-F fob?
It is intended for SecurePass CR readers and HID or HID-compatible proximity readers when the credential format and controller programming match.
Does the fob need a battery?
No. It is a passive proximity fob and does not use a replaceable battery.
Is this the same as a SecurePass card?
No. It uses a key fob form factor instead of a card, although it is part of the same SecurePass credential family when programmed correctly.
Why should the pack quantity be checked?
The uploaded item name says 20 pack, while manufacturer-style references commonly list 40-F as sold in packs of 25. Verify the actual stock package before upload or fulfillment.
What information is needed for credential orders?
Confirm facility code, bit format, starting number, quantity, and the reader/controller family used at the site.
