PURPOSE: To provide the remote control transmitter whose power supply defect can be corrected by rotating an incorporated battery.

CONSTITUTION: When a knob or a battery cover brought into contact with the battery incorporated in a remote control transmitter 1 is operated, the battery is rotated to remove foreign matters generated between the battery and a conductive terminal, and the power supply state is restored. Consequently, a power supply defect of the remote control transmitter is easily corrected without detaching the battery cover only by operating the knob or the battery cover.