a belt connector for electrically connecting an electrode belt to a biometric device to be carried on a human or animal body . the belt connector is made from one single piece which can be economically manufactured in order to function as a single - use consumable , to be used with a matching biometric device . the connector comprises a molded plastic frame having a shaped circular or semi - circular hole with radial flexibility to function as a female snap button fastener for receiving and fastening on the front side of the frame a male snap protrusion . the belt connector further comprises fastening means for fastening to the frame a belt end of said electrode belt , and a member adjacent to said snap fastener hole to engage an electrode wire end electrically connected to said belt such that said end is in contact with said hole and comes in electrical contact with a conducting male snap fastener inserted in said hole . the belt connector and belt is configured such that a person wearing the belt under operation is insulated from current running through the belt , in order to meet existing standards for medical devices .