Rugged and accurate, this instrument is ideal for slide wire bridges and potentiometers. It includes features such as:• External magnet-type movement• 500-0-500-microampere measuring range; 10ìA/div.• Scale graduated in 50 divisions, each side of center zero• Internal resistance 46Ù• 2 six-way binding posts with marked polarity• Zero-adjustment screw• High-impact molded case with inclined faceIncludes operating instructions. Size: 11.5cm x 13cm x 12cm.