Test Lead Wire, Roll Length 50 ft, Color Black, Instrument Safety Rating CAT III, IEC61010-031, Insulation Material Silicone, Nominal Outside Diameter 0.144 in, Stranding 65 AWG/36 Tinned Copper Conductor, Wire Size 18 AWG, Maximum Voltage 10,000 V, Minimum Temperature Measurement -58 Degrees F, Maximum Temperature Measurement 302 Degrees F, Maximum Current 20 A, Maximum Operating Temperature 302 Degrees F, Standards IEC 61010-031