... ,power meter,power factor meter,hour meter, m digital panel meter,panel meter,energy meter,ampere meter,volt meter,freqency meter,power ... ,hour meter, moving coil instrument,square meter,analog panel meter Moving Iron Instruments AC Ammeters Model: YNC-96 YNC-72 YNC-48 ... internal value, can be changeable. But the accuracy is unchangeable. Panel Meter (Moving Iron Instruments AC Ammeters)