In an aspect, a kit of parts for an electrical connector, which includes a plurality of housing portions, a first male terminal and a second male terminal, and an output device. The plurality of housing portions are mateable together to form a housing. The printed circuit board positionable in the housing. The male terminals are connected to the printed circuit board and are positioned to connect to an electrical power source. The output device is connected to the printed circuit board. The printed circuit board is connectable to an electrical conduit and is configured to electrically connect the electrical conduit to the male terminals, and contains a microprocessor that is programmed to indicate via the output device at least one property of a circuit formed with the electrical connector and the electrical power source.