There is provided a device for acquiring biometric electrical signals comprising at least two electrodes. The device also comprises a current supply comprising a direct current supply, an alternating current supply, and a switch actuatable to switch selectively between the direct current supply and the alternating c...

This disclosure is directed to an electrode testing device, system and method, for testing electrodes, comprising at least one electrode mounting holder, for holding an electrode to be tested, at least one user mount for holding a limb or digit of a user, wherein the user mount is configured to enable the electrode ...