Model: SCT013 Frequency: 50Hz–150kHz Retractable transformer -013 Opening size: 13mm x 13mm Non-linearity 3% (10%–120% rated input current) 1.5m leading wire, 3.5mm 3 core plug standard output Two forms of output: current and voltage (voltage output includes built-in sampling resistor) Core material: ferrite Mechanical strength: opening and closing, no less than 1000 cycles at 20°C Safety indicators: Dielectric strength 6000V AC/1min Meets UL94-V0 flame retardant properties Operating temperature: -25°Celsius to +70°Celsius Applications: For AC motors, lighting equipment, air compressors and other current measurement, monitoring and protection Color: blue + black Material: plastic Type: 20A 1V Package Contents: 1 x Current Transformer Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.