Gain adjustment switch (×1/×10/×100): Individual gain adjustment for each channel signal; three steps: 0 dB (×1), 20 dB (×10), 40 dB (×100)

LED power indicator (POWER): It will light up when the instrument is in normal operation.

Signal output channel (CH OUT): It uses a BNC port.

Signal input channel (CH IN): It uses a BNC port for use with the ICP preamplifier.