Main Features: 1.Large blue LCD display, with key parameters display in large font size 2.Slow Rise/Fall, Scanner and test, test line clear to zero function 3.Upper and lower limit alarm, open and short circuit alarm protection 4.Intelligent judgment, voice and light alarm, large font display 5.8-group and 8-step test condition memory 6.Advanced PWM control and DSP technical 7.The fastest test speed for three functions is 2.5s 8.High accuracy, high efficiency, large capacity, small volume.