Solinst Series 5 Barologger
Measures and logs changes in atmospheric pressure.
Measures absolute pressure (water pressure + atmospheric pressure) expressed in feet, meters, centimeters, psi, kPa, or bar. The most accurate method of obtaining changes in water level is to compensate for atmospheric pressure fluctuations using a Barologger, avoiding time lag in the compensation. The recorded barometric information can also be very useful to help determine barometric lag and/or barometric efficiency of the monitored aquifer.