8400-K2: 4-Channel Tethered Rat SystemThe 8400 K2 rat system is a configurable 4 channel tethered setup. Users may select low pass filters and gain settings. EEG, EMG and biosensor data are amplified and filtered at the head of the rat by the preamplifier. Two biosensor inputs can be acquired on a single channel. Signals are then passed through the rat commutator and swivel (8409) to the data conditioning and acquisition system (8401 HS) for final stage conditioning and filtering.