04/29/2026
In today’s security-conscious world, access control credentials play a vital role in protecting buildings, data, and personnel. Whether you’re securing an office, hospital, or industrial facility, choosing the right type of credential is essential for ensuring efficiency and security. In this blog, we’ll explore the different types of access control credentials and their unique benefits.
1. Proximity Cards (Prox Cards)
Proximity cards are one of the most common access control credentials used today. They operate using radio frequency identification (RFID) technology and allow users to gain access by simply holding the card near a reader.
Benefits:
• Contactless entry
• Durable and long-lasting
• Widely compatible with existing access control systems
2. Smart Cards
Smart cards contain an embedded microchip that can store and process data, providing a higher level of security than standard prox cards.
Benefits:
• Enhanced encryption for increased security
• Can be used for multiple applications, such as secure printing and payments
• More difficult to clone than prox cards
3. Key Fobs
Key fobs function similarly to proximity cards but in a smaller, more convenient form factor that can be attached to a keychain.
Benefits:
• Compact and easy to carry
• Contactless access
• Can be programmed for multi-door access
4. Mobile Credentials (Smartphones & Wearables)
Mobile credentials leverage NFC (Near Field Communication) or Bluetooth technology to allow access using a smartphone, smartwatch, or other wearable device.
Benefits:
• Eliminates the need for physical cards or fobs
• Easily managed through cloud-based access control systems
• Enhanced security with multi-factor authentication
5. Biometric Credentials
Biometric access control uses a person’s unique physical characteristics, such as fingerprints, facial recognition, or iris scans, to grant entry.
Benefits:
• Extremely secure as credentials cannot be lost or stolen
• Fast and contactless authentication
• Eliminates the risk of credential sharing
6. PIN Codes & Keypads
PIN codes require users to enter a numerical code on a keypad to gain access.
Benefits:
• No need for physical credentials
• Cost-effective and easy to implement
• Can be used as part of a multi-factor authentication system
7. Multi-factor Authentication (MFA) Credentials
Multi-factor authentication combines two or more credential types, such as a smart card with a PIN or a biometric scan with a mobile credential.
Benefits:
• Increased security by requiring multiple forms of authentication
• Reduces the risk of unauthorized access due to lost or stolen credentials
• Ideal for high-security environments
Access Control Solutions from Armstrong Systems & Consulting and The ISG network of Dealers across the United States.
The best credential type for your facility depends on your security needs, budget, and the level of convenience required. While traditional prox cards and key fobs remain popular, many organizations are upgrading to smart cards, biometrics, and mobile access for enhanced security and flexibility.
Need help selecting the right access control credentials for your organization? Contact us today to explore your options and find the best solution for your security needs.
From identification to access control to emergency notification to visitor management, and a whole lot more, your nationwide ISG network is here to serve all of your identity, tracking and security needs.
