... : 58, 66.5, 4.5, 26, 40.5, 52, 39mm SF-65: 73.5, 83.5, 4.5 Model unit A ... , B, C, D, E, F, G SF-52: 58, 66.5, 4.5, 26, 40.5, 52 ... , 39mmApplicationsSFIM's SF, DND, SFC series meters and direct acting indicating analogue electricalmeasuring ... power, power factor,synchroscope, phase indicator and the other non-electric value. SF-62T2 Round Panel Meter