Detection distance(mm):2mm+_10% Set distance:0~1.6mm Standard detection object:Iron 12*12*1mm Response Frequency:(N.Ptype):0.6kHz (D type):0.4kHz (A type):25Hz Equivalent to the same type of the other brands  (P+F and TURCK) Power supply reversal connection protection; short-circuit protection, can directly connect with PLC * Newly added current over-load protection; the elements are made of imported chip Long service life, high reliability and strong resistance property to environment Red LED indicates that it's available to detect the sensor operating state Full thread shape to enlarge the installation space; can use wrench and clamp directly Countermeasure to improve the housing intensity and to solve disconnection * IP67 protection structure (IEC specification)