Additional Features: Frequency range is 50 Hz to 2 MHz DC Bias: -200 V to +200 V The Agilent 16055A provides electrostatic and light shielding for stable pA current measurements. Consists of test fixture. two connection plates (one for clip leads and one for T-05 10 pin sockets) to allow easy connection to devices under test. Also furnished is a kit containing one each 8, 10. and 12 pin socket, 10 each clip leads, and 10 each connection leads for TO-5 sockets. The Agilent 16055A is compatible with both the 4140A and 4140B pA Meter/DC Voltage Sources.