Item Type: Clamp DC Leakage Current Sensor Model: ETCR030D Material: ABS+permalloy Application: Suitable for electric power, communications, meteorology, railways, oil fields, construction, measurement, scientific research and teaching units, industrial and mining enterprises and other fields. Transformer range, output signal, output interface, etc. Range and Accuracy: RangeResolutionAccuracy Class 0.1mA~100mA DC0.1mA3 Other Parameter: Power Supply9V CT SizeApprox. 25 x 30 mm / 1 x 1.2 in Range0.1mA~100mA DC Output Signal25mV/1mA Resolution1mA DC Accuracy Level3.0 Output Interface2 core shielded wire is 2m long, red wire: power output is positive; yellow wire: output signal is positive; shielded wire: power output is negative/signal output is negative Security LevelCAT600V Operating Temperature-15C~50C Dielectric StrengthAC 3700V/rms (between iron core and shell) Clamp Meter QualityApprox. 180g / 6.3oz External SizeApprox. 115 x 70 x 33 mm / 4.5 x 2.8 x 1.3 in