... ! 3.With continuity test! HD90A is 3 1/2 digital clamp meter with steady performance,safety and reliability, full function. The instrument ... , not easy to damage. AC current is measured through the clamp jaw with four positions of 2000mA,20A,200A,600A,the ... the test lead,and can test AC Voltage,DC Voltage,Resistance,Diode and continuity. General characteristics:1.Max voltage between the ...