The BALLUFF BIS M-402-045-002-07-S4 is a high-frequency (13.56 MHz) RF assembly with dimensions of Ø18×45.5 mm, designed for metal-free installation (clear zone). It features a round antenna type and supports data carrier types DIN ISO 14443 and DIN ISO 15693. The unit comes with an M12×1 male connector (4-pin) and 0.50 meter PU cable housing.