1.HD90A 3 1/2 small digital clamp multimeter is a Professional clamp multimeter! 2.Mini and Practical! 3. ... With continuity test! HD90A is 3 1/2 digital clamp meter with steady performance,safety and reliability, full function ... to damage. AC current is measured through the clamp jaw with four positions of 2000mA,20A,200A,600A ... )13.Max jaw opening: 25mm14.Accessories:User's manual, test lead, battery