Name：Keysight B1511A

Features MPSMU - Range up to 100 V / 100 mA with 4-quadrant operation Minimum measurement resolution 10 fA / 0.5 μV Minimum source resolution 50 fA / 25 µV Max Pulse Width of 2 s Optional ASU (atto-sense and switch unit) is supported to expand the range down to 1pA range with 0.1 fA measurement resolution