AC Clamp On Current Probe, Amps AC 20 To 300a, AC Frequency Response 30 Hz To 5 Khzjaw Capacity 2.1 In. (54mm), Max. Conductor Size 2500 Mcm, Connector Type Dranetz Hypertronics Connector, For Use With Mfr. No. Dbpx108, Dbpg106, Dbpv500, Dbpv10, Dbpvflex, Dbpv550, Dbpx108-400, Enc-tr-s, Enc-tr-e, Output 1.5v Full Scale Rms, Accuracy +/-1.5 Percent . Includes Instructions.