EXTERNAL UNIT FOR INHALATION COMPONENT GENERATION DEVICE, INHALATION COMPONENT GENERATION SYSTEM, METHOD FOR CONTROLLING EXTERNAL UNIT FOR INHALATION COMPONENT GENERATION DEVICE, AND PROGRAM

An external unit for an inhalation component generation device includes a connection part that is electrically connectable to a power supply unit of the inhalation component generation device, a sensor that is capable of outputting an output value related to an electrical resistance value of a resistor provided in the power supply unit, and a first control part that is configured to determine, based on the output value, whether to change a predetermined control with respect to the power supply unit connected to the connection part or whether to perform the predetermined control.