1Application:as the same as current sensor 2Three ranges adoption by adjusting the knob 3For physics experiment in laboratory Application: The application is the same as current sensor1,Rang:-1A~+1A,-200mA~+200mA,-20mA~+20mA2,Resolution: 0.01A , 1mA , 0.1mA3, Description: Multi-range Current Sensor has three ranges adoption by adjusting the knob on it.