A spool control unit includes a circuit board, a plurality of electric
components, an external device connector, and an insulating film. The
circuit board includes a printed circuit on a surface thereof. The
plurality of electric components include a microcomputer that controls
the fishing equipment through a control program, and are disposed on the
circuit board such that they are electrically connected to the printed
circuit. The external device connector is mounted on the circuit board
such that it is electronically connected to the printed circuit, and
serves to connect to an external device. The insulating film covers at
least a portion of the circuit board as well as the electric components
but does not cover the regions of the circuit board on which the external
device connector is mounted.