An improved system (700) for wirelessly communicating a level of fluid and/or a change in the level of fluid within tissue of a body comprises a sensor device (800) for detecting a level of fluid and/or a change in the level of fluid within the tissue a transmitter (710) in operative connection with the sensor device for receiving therefrom a signal indicative of the level of fluid and/or the change in the level of fluid within the tissue and for transmitting a wireless signal indicative of the level of fluid and/or the change in level of fluid and a remote receiver (720) for receiving the wireless signal transmitted by the transmitter.