1.Anti-high-voltage ignition circuit design;2.New type of shock sets,streamline design,safe&comfortable;3.Large screen display Production IntroductionHQ203/206A Series Digital Multimeter clamp designed by 9V battery-driven,3 3 / 4 LCD large screen display. Can be used to measure AC and DC voltage,DC current, (203 no such function) AC current, resistance, as well as on-off test frequency, ...