A wireless communication device, comprising: - a circuit unit; and - an antenna which is connected to said circuit unit and which is configured to transmit and to receive signals to and from, respectively, a transceiver in a non-contact manner; wherein: - said wireless communication device is configured to transmit different signals to said transceiver depending on the presence or absence of contact between at least a part of said circuit unit and moisture, - said circuit unit comprises: - a wiring, - a memory element (50, 50a, 50b, 50B) which is connected to said wiring and which is configured to store predetermined information, and - a control circuit which is configured to read information from said memory element (50, 50a, 50b, 50B) and to transmit the information to said transceiver, - when at least a part of said wiring comes into contact with moisture, the electrical resistance of said wiring and thus of the circuit unit changes to result in changes in information to be read by the control circuit from said memory element (50, 50a, 50b, 50B), - said wireless communication device is configured to transmit signals including different information to said transceiver, depending on the presence or absence of contact between at least a part of said wiring included in said circuit unit and moisture, and - said circuit unit is configured such that the information to be read by said control circuit from said memory element (50, 50a, 50b, 50B) varies depending on the presence or absence of contact between said wiring and moisture. comprising: - a circuit unit; and - an antenna which is connected to said circuit unit and which is configured to transmit and to receive signals to and from, respectively, a transceiver in a non-contact manner; - a circuit unit; and - an antenna which is connected to said circuit unit and which is configured to transmit and to receive signals to and from, respectively, a transceiver in a non-contact manner; wherein: - said wireless communication device is configured to transmit different signals to said transceiver depending on the presence or absence of contact between at least a part of said circuit unit and moisture, - said circuit unit comprises: - a wiring, - a memory element (50, 50a, 50b, 50B) which is connected to said wiring and which is configured to store predetermined information, and - a control circuit which is configured to read information from said memory element (50, 50a, 50b, 50B) and to transmit the information to said transceiver, - when at least a part of said wiring comes into contact with moisture, the electrical resistance of said wiring and thus of the circuit unit changes to result in changes in information to be read by the control circuit from said memory element (50, 50a, 50b, 50B), - said wireless communication device is configured to transmit signals including different information to said transceiver, depending on the presence or absence of contact between at least a part of said wiring included in said circuit unit and moisture, and - said circuit unit is configured such that the information to be read by said control circuit from said memory element (50, 50a, 50b, 50B) varies depending on the presence or absence of contact between said wiring and moisture. - said wireless communication device is configured to transmit different signals to said transceiver depending on the presence or absence of contact between at least a part of said circuit unit and moisture, - said circuit unit comprises: - a wiring, - a memory element (50, 50a, 50b, 50B) which is connected to said wiring and which is configured to store predetermined information, and - a control circuit which is configured to read information from said memory element (50, 50a, 50b, 50B) and to transmit the information to said transceiver, - a wiring, - a memory element (50, 50a, 50b, 50B) which is connected to said wiring and which is configured to store predetermined information, and - a control circuit which is configured to read information from said memory element (50, 50a, 50b, 50B) and to transmit the information to said transceiver, - when at least a part of said wiring comes into contact with moisture, the electrical resistance of said wiring and thus of the circuit unit changes to result in changes in information to be read by the control circuit from said memory element (50, 50a, 50b, 50B), - said wireless communication device is configured to transmit signals including different information to said transceiver, depending on the presence or absence of contact between at least a part of said wiring included in said circuit unit and moisture, and - said circuit unit is configured such that the information to be read by said control circuit from said memory element (50, 50a, 50b, 50B) varies depending on the presence or absence of contact between said wiring and moisture.