DIGITAL CLAMP METER General specs. Jaw opening 2mm. Display 3 & hall digit LCD display with automatic sign & function. Electric specs: AC current range ( 50hz ) 2A/ 20A/ 200A/ 40A/ 600A AC voltage range upto 750V AC, DC voltage range. 2V/ 200V/ 1000V, Resistance range200ohm to 200Kohm, frequency 2khz to 20khz Diode test & coninulty test features.