magnetic scale:automatic inside calibration,automatic fault detection,linear 4 point calib,overload protection,electromagnetic ... magnetic scaleNamemagnetic scale Model FA1004C(internal automated calibration)Capacity (g) 0-220g Readabilit(g)0.0001gPan Size(mm ... ,CE,C-Tick,RoHs Magnetic Scale -- 0.1mg Internal Automatic Calibration