Current Transducers Back To Top Model Description ATR 0, 1 & 2 0-2 to 0-200A; AC; True RMS AT 0, 1 & 2 0-2 to 0-200A; AC; Average sensing AT/ATR 3 & 4 0-375 to 0-2000A; AC; High Current ATP 0, 1 & 2 0-2 to 0-200A; AC; Powered Transducer ATQ 0, 1 & 2 0-2 to 0-200A; AC; Frequency Output DT 1, 2, 3 & 4 0-50 to 0-400A; DC; Hall effect technology