The Solinst Barologger Gold is part of the Model 3001 Levelogger series and is the easiest method to compensate for barometric pressure when using leveloggers. Simply suspended the Barologger above the highest point that water will go in one of the wells on your site within a 20 mile radius. When you download the data from the loggers, the software will correct the level data for the leveloggers at the site.
This can save many hours of manually correcting data for each well and will track the pressure throughout the sampling cycle. If real-time BP readings are not required you can still use the software and a known barometric pressure data from the time of sampling to get the same, multiple probe correction.