Highpower Security proximity card readers are convenient, fast, and simple to use - you just hold your proximity card in front of the reader and your code is instantly and securely transmitted from the card to the proximity reader via radio signal. All proximity readers are weatherproof and have no moving parts to wear or break. All "Wiegand-interface" proximity card reader models are used in conjunction with a door controller. Some proximity reader models also have ABA outputs for interfacing with mag-stripe systems.