Description Description Range 0-1999 nanoamperes, positive and negative polarity Accuracy +/- 10% across the range Display 3-1/2 digit LCD Collector plates Size: 13.1 square inches, each Voltage: 5,000+/- 100 voltz, negative plate; 3,750+/-100 voltz positive plate Wired for 120 volts ac, 50/60 Hz, 50mA Power Size 6 X 6 X 8 weight 3 pounds This item powers up and the digital readout responses to changes. However, it is being sold as is with no warranty. No manual or peripherals are included. View AllClose