Proximity cards and tags, or otherwise known as prox cards are extremely common and used in various applications in Access control and Time & Attendance. they come in various bit (27,32 etc) formats and frequencies (125Khz). The cards can be programmed to suit your specific reader.
They can also come in various formats such as tags and long range units are used in cars to open booms when approaching them without having to do anything. These long range units are more commonly used in drive through toll roads.
- 26 bit (H10301) format,
- 37 bit (H10302) format,
- 35 bit Corporate 1000 format cards
- Slim line
- Long Range
- standard sizes (credit card)