Electric measure instruments ANALOG Dimensions (mm): 24x96, 48x48, 48x96, 72x72, 96x96, 144x144, 70x60, 90x80, 127x109. To be used as: ammeters, voltmeters, power factor meters, frequencimeters, wattmeters, varmeters, countermeters, RPM meters, d.c./a.c. level measures.