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 .