Features: There are 3 types, 5A/30A/50A, choosing according to your needs. This is a mini current transformer with lead wire. Using snap joint structure, it can be fixed to the cable directly through nylon ties. Built-in input coil; small and light, easy to install. Fully enclosed, good mechanical properties and environmental resistance, strong voltage isolation capability, safety and reliability. Specifications: Material: ABS Size: 18X5mm/ 0.7x0.19 in Accuracy is 0.1 grade Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Micro Current Transformer