Contactless Technology allows users to clock in or out without the need to touch anything at all.
This has several advantages such as the prevention of cross contamination in hospitals and clinical environments. Also because no moving parts are present this eliminates mechanical breakdown and increases reliability with less down time giving a system you can rely upon.
The main features of a contactless system work on RFID technology with an embedded chip and aerial encapsulated within a card or a key fob. The time attendance terminal sends out an RF signal that extends up to 10 cm from the unit this is reflected back to the unit by the users ID card or fob this reflected signal then contains a code that is unique to the user and can then be stored as an in or out transaction. This technology can be hidden in many other items such as a watch or luggage tags and is commonly used in retail establishments to prevent theft.