The GSR 2 is a single channel Galvanic Skin Resistance monitor. The GSR 2 measures minute changes in skin pore size and sweat gland activity as it relates to tension. Ideal for personal use.
The GSR2 sits in the palm of the hand. Feedback includes variable pitch tone. As tension increases, tone increases, as tension decreases, tone decreases. The goal, when using the GSR2 for relaxation, is to focus on the feedback tone and try to get it lower and lower, or just listen to it in the background as you focus on your breathing.
The GSR2 provides a relative measure of skin conductance, as opposed to an absolute measure. For relaxation purposes, one only needs an indication of whether a physiological signal is going up or down.
1 Year manufacturer warranty.