Abstract: The present invention is a saturometer capable of directly measuring Delta P. The saturometer is also capable of providing measurements of temperature and barometric pressure as well as calculating percent saturation. The saturometer is further provided with a liquid crystal display for displaying the above measurements and calculation. The sensor package is removably housed in a probe having either an hour-glass shaped or auger/screw shaped interior designed to increase the velocity of water flow over the sensor package, thereby increasing the accuracy of the measurements.