This instrument is a digital insulation tester which adopts DC voltage converter of low consumption, high converter ratio, and inductance type energy storage to convert the voltage of W DC into 250V/500V/1000v DC. With digital bridge, the instrument can test insulation and its main features include Easy to operate, Wide test range, Highly stable performance, Backlit LCD display, Data hold and Auto power off. Using shoulder Strap, it can be used by both hands. It is an ideal instrument that can be used in testing insulation of electric machines, cables, electronic equipment’s, electric facilities, etc.