SM7810-20 Super Megohm HiTester 220V MeterResistance measurements range from 1 x 102 to 1 x 1015 Current measurements range from 1pA to 1mA Reaches speeds of up to 6. 8ms across 8 channels at once Functions include trigger delay, averaging, contact check, jig capacity open correction, measured value comparison and judgment and jig resistance open correction External supply voltage via input terminal on the back GP IB, RS 232C and EXT I O interfaces AC 220V, 50 60Hz, 30VA power supply