Will a skin conductance project, be recognized as "safe" project. I am planning to publish a skin conductance project. It will use a AC voltage in range 80- to 200Hz about 70mV RMS. A pc sound card as AC generator, and for data collection. The system will use synchronous demodulator technology used in "Lock-in amps" for signal recovery. But all this will be done in software which I provide. So the project is a hardware only project. I work with medical equipment so the design will have safety measures built in. But to control the use will be out my hands