Proximity readers are intelligent and versatile devices, ideal for integration with alarm and home automation systems. Available in two models — nBy/K and nBy/X — they are perfectly suited for both residential and commercial environments.nBy/K is a BUS-based recessed reader featuring a programmable terminal and universal keystone coupling. It is compatible with the most common wall plate series and available in black and white. nBy/X, on the other hand, is a universal recessed reader with a compact and elegant design, ideal for discreet and functional installations.