The present invention pertains to an apparatus for evaluating the signal
strength from the pH sensor to determine whether the sensor is hydrated
sufficiently to accurately measure pH. This is accomplished by utilizing
circuitry that periodically sends a low voltage signal to a suitable pH
sensor and then receiving the resulting waveforms which are analyzed by a
processing receiver. The electrical connection between a suitable pH
sensor and hydration monitoring circuitry is generally hard wired. In one
embodiment, a processing receiver is coupled with the hydration
monitoring circuitry as a single apparatus. In a second embodiment, the
processing receiver can be independent and located remote from the
hydration monitoring circuitry. In this embodiment, the hydration
monitoring circuitry and the processing receiver are electrically
connected using either hard wired techniques or wireless technology. In
addition, the processing receiver can include data recording capability.