Guide to Identifying Your Card Type Before Buying

When purchasing proximity (prox) cards, it's crucial to identify the card type to ensure it is compatible with your access control system. Making the right choice can help you avoid unnecessary purchases, reduce expenses, and streamline your security operations. Let’s expand on the methods for identifying the type of prox card you have and provide additional details on each step.

1. Check for Manufacturer and Model Information

Many prox cards display vital information on the surface, including the manufacturer and model number. Manufacturers such as HID, Identiv, and Schlage typically print their names on the card, often near the card number or along the edges. The model number is equally important because it can pinpoint the card type and its specifications.

• Tip: If the card information is unclear or the printing has worn off, cross-checking with your access control system or vendor could help you retrieve that information.

2. Use a Card Reader

A prox card reader that is compatible with your system can display key information such as the card format, facility code, and even user ID numbers when scanned. Many modern readers can quickly read card data and relay important details back to the user.

• Tip: Some readers are equipped with more advanced functionalities, allowing you to see the card's bit length and encoding format, both of which are crucial in determining whether it will work with your access control system.

3. Reference the Card’s Frequency

Proximity cards typically operate on two different frequencies:

• 125 kHz (low-frequency): Common with older prox cards.
• 13.56 MHz (high-frequency): Used by cards like MIFARE and iCLASS cards, which support more advanced encryption and capabilities.

The frequency of the card is sometimes indicated directly on the card itself. If not, you can use a frequency tester, a small handheld device, to determine the operating frequency.

• Tip: Always ensure that your card reader is compatible with the card’s frequency before purchasing, as mixing frequencies can cause access issues.

4. Consult the System Documentation

Your access control system’s documentation will often specify which card types are compatible. Matching the system’s requirements with the card you have (or plan to purchase) can save you time and money.

• Tip: If your system supports multiple card types, prioritize using cards that offer cost-effectiveness while maintaining necessary security features.

5. Test the Card with Your Access Control System

If you are unsure whether a card is compatible, testing it directly with your existing system is often the fastest method. If the card grants access as expected, you have confirmed a match.

• Tip: Some systems allow for easy addition of new card types through software updates or new configurations. Contact your provider to discuss potential upgrades if you are integrating new card technologies.

6. Use Mobile Apps

With the proliferation of Near-Field Communication (NFC) technology in smartphones, certain mobile apps can now scan proximity cards and identify the card’s type, frequency, and format. These apps are especially useful when you don't have immediate access to a reader or frequency tester.

• Tip: While this method is convenient, always double-check with a physical card reader or your system’s documentation to confirm results.

7. Contact the Manufacturer

If the above methods fail to yield clear results, contacting the card’s manufacturer can provide the most accurate information. Provide them with any visible serial numbers or card identifiers, and they can offer details on card type, usage, and potential compatibility with various systems.

• Tip: Manufacturer websites often have user guides or support sections where you can enter card details for faster identification.

Additional Tips for Managing Prox Cards Efficiently

• Buy in Bulk: Larger organizations can often save by purchasing prox cards in bulk. Many suppliers offer discounted rates for high-volume orders.
• Use Generic Cards: In some cases, using generic or third-party cards compatible with your system can lead to significant savings, as branded cards tend to be more expensive.
• Reprogram Old Cards: If your system allows it, reprogramming existing prox cards can reduce the need for new purchases and help manage inventory more effectively.
• Track Expiration: Some high-security prox cards may have an expiration date. Keep track of card lifespans to avoid being caught off-guard by the need for replacements.

By understanding how to identify your prox cards and implementing these cost-saving measures, you can ensure compatibility with your system, streamline procurement, and optimize your access control infrastructure. Contact us today to speak with an ID expert on how to identify what type of prox card you have.