... to operate with step load ban variable adjustment.The digital meter displays the line voltage, line ampere, frequcy, power ... 9(Variac),18, 27,54,54,54,108,108KwDigital multi-meterRESISTOR ELEMENTSMetal sheathed elements manufactured from high grade nickel ... type form heating elements with cooling fins.DIGITAL METERINGPower monitoring meter displaying the amper, voltage, KVA, KW, with funiction ...