Item Type: Clamp Leakage Current Sensor Model: ETCR016 Material: ABS+permalloy Application: Widely used in electric power, communications, meteorology, railways, oil fields, construction, measurement, scientific research and teaching units, industrial and mining enterprises and other fields Range and Accuracy: RangeResolutionAccuracy ClassPhase ErrorTransformation Ratio 0.00mA~20A AC 0.01mA0.52 800:1 Other Parameter: FunctionHigh accuracy AC leakage current, high order harmonic current, phase, electric energy, power, power factor, etc. detection ModelETCR016 Measuring Range0.00mA~20A AC Resolution0.01mA Accuracy Class0.5 Phase Error2 Transformation Ratio800:1 Reference Load120 Jaw SizeApprox. 16mm / 0.6in QualityApprox. 138g / 4.9oz Output InterfaceBNC plug/4.0mm double banana plug/3.5mm audio plug/bare wire tap (optional), cord length 1.5m Working Frequency45Hz~100kHz Dielectric StrengthAC 3700V/rms (between core and shell) Security LevelCAT600V Output MethodInductive current output Working Temperature and Humidity-15~50; below 80%rh