Item Type: Needle Nose Clamp Current Sensor Model: ETCR008 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~30A AC 0.01mA0.52 2500:1 Other Parameter: CT SizeApprox. 8mm / 0.3in RangeAC 0.00mA~30.0A Resolution0.01mA Accuracy0.5 Phase Error 2 Reference Load0~300mA300; 0~3A30; 0~30A3 Transformation Ratio2500:1 (can be customized as required) Output MethodInductive current output Output InterfaceTerminal interface: BNC plug/4.0mm double banana plug/3.5mm audio plug/bare wire tap (optional), line length 1.5m Detection MethodClamp CT Working Frequency45Hz~100KHz Security LevelCAT600V Working Environment-15C~50C Dielectric StrengthAC 3700V/rms (between iron core and shell) Clamp Meter QualityApprox. 175g / 6.2oz External SizeApprox. 137 x 40 x 19.5 mm / 5.4 x 1.6 x 0.8 in