Radio-frequency identification (RFID) key fobs are essential components of an RFID system, designed for keyless entry and access control. An RFID system fundamentally consists of two parts: the RFID key tag, commonly known as a key fob, and an RFID reader. Delving deeper, the RFID key fob itself is made up of two critical components: a microchip that securely stores data such as a unique identification number, and an antenna, typically a coiled wire, responsible for both receiving and transmitting data.
Rfid Key Fobs are categorized based on their operating frequency band: Low Frequency, High Frequency, or Ultra-high Frequency. Within these frequencies, RFID systems are broadly classified into two major types: Active and Passive. Let’s explore each of these categories and their respective frequencies to understand the nuances of RFID key fob technology.
Decoding Common Key Fobs
The key fobs you commonly encounter for accessing amenities like swimming pools, gyms, elevators in condominiums, Homeowners Association (HOA) communities, apartment complexes, and community centers typically operate on passive and low frequency (125 kHz) RFID systems. These systems are designed for short-range communication and are cost-effective for widespread use.
If your key fob is specifically used to unlock only the front door of your apartment unit, it is likely a High frequency key fob. High frequency systems offer a slightly longer read range and are often used for more secure access points.
For key fobs that provide access to gates, amenity entrances, and also your apartment’s front door, you are likely using a dual frequency key fob. These sophisticated fobs incorporate both high and low frequency capabilities, offering versatility and convenience across different access points within a community.
Frequency Breakdown:
- Low Frequency (125 kHz): Ideal for apartment complexes, amenity gates, elevators, building entrances, pools, and gyms. Low frequency RFID is robust and less susceptible to interference, making it reliable for basic access control.
- High Frequency: Typically used for individual apartment unit doors. High frequency offers enhanced security and slightly faster data transfer rates compared to low frequency.
- Dual Frequency: Combines both low and high frequencies for comprehensive access to all areas, from communal amenities to private living spaces. This provides a seamless user experience with a single key fob.
To determine the compatibility of your rfid key fobs, please refer to our compatibility page which provides visual examples. If you are unable to find your key fob listed, please email a picture to [email protected] and our expert team will assist you in determining its compatibility. We are here to help you navigate the world of RFID key fobs and ensure seamless access to your property.
