In order to avoid the pressure drop caused by the length of the wire connecting the load, the remote test allows measurement directly on the terminal of the test object to improve the measurement accuracy. The "S+, S" is the remote measurement terminal, and "+, -" stands for the output positive and negative terminals. When using the remote measurement function, it is necessary to disconnect the wires connected to the "+, -" terminals and lead S+, S to the test object. The built-in DVM measures DC volts in a range from 0.001 V to 61.000 V.