Surface mount devices are usually tiny and without wire leads, making it much more difficult to test and identify SMD than conventional components. The V&A VA503 gives users an easy way to sort and evaluate loose components and to perform on-board measurements and debugging. Precise tips made of non-magnetic steel are able to pick and reliably contact even smallest SMD components, or take measurements from the devices already mounted on a board. The probe can also be used to test conventional components with wire leads too short to insert into the test terminals. The VA503 has 6 resistance measurement ranges from 0 to 400 ohms, up to 4M ohms, for capacitance measurement, there are also 6 ranges from 0 to 4nF up to 200 uF, you can also use it to do diode test.