Three Phase Digital Power Clamp Meter V, A, W, VA, VAR, KWh, PF, Hz measurement RS232 ... V, A, W, VA, VAR, KWh, PF, Hz measurement Double display two parameters on eash menu and store 28 groups of ... long time Large LCD display, multifunctional button controlSPECIFICATIONSMax conductor size50mmAC current(A)40/100/400/1000A±2%AC voltage(V)100/300 ...