Abstract: A medical scope with a probe capable of being utilized for a single imaging procedure is described. The medical scope has a control unit with a programmable memory unit, a socket for receiving a plug end of the probe, and the probe having a light guide and a pair of power wires extending along the length thereof. The control unit also has a display screen, a set of switches to control functions, and a light source. The probe includes a check bit memory unit for retaining a selected value that the control unit will detect, a zero value indicating a new probe and a non-zero value indicating a used probe. Therefore, the used probe will be rejected by the control unit and cannot be used again.