BMA-400 4 Channel AC/DC Pre-Amplifier Analgesia Model SAR-830/AP (shown above) has

Model SAR-830/AP (shown above) has the additional feature of pressure-cycling

The Model 2100 is can operated continuously (free-running mode)

The original Electronic von Frey is used to assess mechanical allodynia with rigid tips (threshold) and the “Supertips™” (flexible von Frey hairs) are used for sensory tests on all test subjects

Accurate to within +/-0

BMA-400 4 Channel AC/DC Pre-Amplifier Analgesia Model SAR-830/AP (shown above) has4 Channel AC DC Preamplifier w 4 ICA 400 Input Cables, includes international power supply; electrode leads sold separately The BMA 400 AC DC Bioamplifier is a low noise, four channel instrument for amplifying EEG, ECG, EMG, and other extracellular biopotential signals. It features exceptionally low noise, a wide gain range, and sharp cutoff bandpass filters. It can be used as a stable DC amplifier, and includes adjustable DC input offset controls.