Accepts 5 to 16 volts, meeting most voltage requirements.,Available with Wiegand or Clock-and-Data interface. ?���,Allows easy upgrade from magstripe to a proximity reader; no rewiring or pulling,of new cable required.,?���Offers high reliability, consistent read-range and low power consumption in an,easy-to-install package. ?��� Mounts directly onto metal with no change in read range performance. ?���,Provides multicolor LED, compatibility with all standard access control systems ?���,and internal or host control of LED and beeper. ?���,Includes multilingual installation manual.