Biological signal measuring equipment

A biological signal measuring equipment, comprising:

• a supporter including:
• an arm;
• a forehead contact portion configured to come into contact with a forehead of a head portion;
• an occiput contact portion configured to come into contact with an occiput of the head portion;
• and
• a fixing region, connected to the forehead contact portion,
• wherein the supporter is configured to be positioned between the forehead contact portion and the occiput contact portion when the supporter is arranged on the head portion;
• an attachment opening present in the fixing region and configured to attach the arm that extends from the supporter in a freely attachable and detachable manner;
• a first electrode attached to a portion of the supporter situated on a median sagittal plane of the supporter;
• a second electrode configured to be positioned at an earlobe and attached to the arm;
• a plurality of magnets, wherein the plurality of magnets and the second electrode are configured to affix to the earlobe so that the earlobe is interposed between the plurality of magnets and the second electrode;
• a case that protrudes from the supporter at the fixing region;
• and
• an electronic device configured to interface with the first electrode and the second electrode.