Picoammeter-RVFM-614-008-The-picoammeter-is-designed-to-measure-very-small-currents-&-has-10-ranges-selected-by-a-rotary-switch-from-100p A-to-3-micro-A-The-instrument-has-a-large-moving-coil-meter-&-can-be-auto-zeroed-by-a-membrane-switch-Input-is-by-way-of-a-UHF-socket-for-shielded-leads-alternatively-4mm-plugs-can-be-plugged-into-the-UHF-socket-&-associated-4mm-socket-An-input-impedance-of-10M-Omega-prevents-damage-by-voltages-up-to-5k V-BR-BR-Suggested-uses-include-measure