Equipped with a high accuracy pressure transducer, this unit has less than- 0.25% accuracy on a range up to 450 feet of salt water. No more worries about converting units as the integral touch screen displays pressure/depth in the following units: pounds per square inch (psi), meters of fresh water, meters of sea water, kilopascals, feet of fresh water, feet of sea water, BAR The touch screen display shows date and time making it easy to record test data. A handy countdown timer is included. This can be very helpful for leak testing where a product has to be submerged at 'depth' for a given amount of time.