Inhalation device with a controller capable of exchanging an atomizer

An inhalation device comprising:

• a holding portion configured to hold an atomizer including a heater configured to heat an aerosol source;
• a power supply configured to supply power to the heater of the atomizer attached to the holding portion;
• an amplifier to which a voltage according to a voltage of a node on a current path configured to supply the power to the heater is input;
• and
• a processor configured to acquire information from the amplifier and execute control according to the information, wherein
• the information takes a voltage value in a first range in a holding state in which the holding portion holds the atomizer, and takes a voltage value in a second range in a non-holding state in which the holding portion does not hold the atomizer, and the first range and the second range do not include ranges overlapping each other,
• an upper limit of the first range is smaller than a power supply voltage supplied to a power supply terminal of the amplifier, and a lower limit of the second range is larger than the upper limit of the first range, and
• the processor determines, based on the voltage value of the information, whether a state of the holding portion is in the holding state or the non-holding state.