Safe Security: Mutual inductance current monitoring has high current detection accuracy and safe isolation of input and output. Easy To Use: Easy to install and use, no need to connect DC into the circuit when measuring. Product Specification: Self-powered, no external power supply required. Measured current AC 0-10/20/50A, output signal DC 0-5V. Straight-through structure design, isolation withstand voltage up to 2000V. High Quality:The outer casing is made of self-extinguishing material plastic. Widely Application: Hysteresis is less than 1% and can be used under strong magnetic conditions. Suitable for AC current measurement and monitoring, AC motor overload protection, electronic switch of automatic control system and so on.<br><br>Material:plastic colour:Black<br><br>Package Contents: 1 x AC Current Transmitter<br><br>Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.