The 260 Nanovolt Source is easy to use, has direct reading dials, and provides output of 10 to 8 V full range to 1.11 V (9 ranges), positive or negative. Accuracy: 0.25% to 0.75% Resolution: three significant figures Excellent voltage source for zero suppression and potentiometric measurements Binding post connectors Only measures 6.25" x 9" x 12"