Stimulus artefact clamp to avoid saturation of the amplifier when using high intensity magnetic or other stimuli
Buffer option: maintains common-mode rejection when a single reference electrode needs to feed multiple channel inputs
ECG front end with 5 lead switching under software control. Lead configurations available: I, II, III, aVL, aVR, aVF and V. Calibrator: 1 mV rectangle wave. Gain is selectable from x100 to x100,000