... B, each channel could accept more than 6 value coin, could setting for coin from two ... of coin (1-6), pulse signal out put for value (1-50), accuracy (1-30), sample quantity ( ... need3, high accuracy, identify coin based on their value, material, thickness and diameter4, CPU micro computer learning ... finish face,match your machine perfectly Easy setting guide,signal speed,NO&NC,accurancy could be set ...