PICOSCOPE 6406E-1GHZ-4CH-8BIT KIT PICOSCOPE 6424E PICOSCOPE 6424E-500MHZ-4CH-FLEXRES PICOSCOPE 6425E PICOSCOPE 6425E-750MHZ-4CH-FLEXRES KIT PICOSCOPE 6426E PICOSCOPE 6426E-1GHZ-4CH-FLEXRES KIT PicoScope 6428E-D PICOSCOPE 6800E 8CH PROBE HOLDER UPGRADE PICOSCOPE 6804E