Abstract: An electronic thermometer for measuring and displaying the temperature of an object comprising: a patch for placement on the object, the patch including an electrical circuit including an electronic temperature sensor that outputs a signal indicative of the temperature of the object and a patch antenna; a receiver including an antenna for generating a magnetic field that is useful in powering the patch, the receiver receiving signals transmitted from the patch indicative of the temperature of the object, the receiver including a circuit for converting the signals from the patch to signals that are compatible with a monitor; and a monitor for receiving signals from the receiver indicative of the temperature of the object and displaying the temperature of the object.