The Solinst Readout Unit (SRU) is an in-field device designed to take and display instant water level readings from a deployed Solinst datalogger. When connected, users can select a real-time sampling rate and start a real-time monitoring session independent of the datalogger’s internal logging mode. Real-time logs can be saved in the SRU memory. The SRU has an internal barometer, which provides the option of showing and saving real-time water level readings corrected to ambient air pressure. The SRU also functions as a data download and storage device with a robust flash memory. Saved files can be trasnferred to a PC. The SRU allows users to access information about the connected datalogger’s status, including battery level, memory, serial number, firmware version, and logging mode, as well as the SRU status. The SRU connects to a Levelogger’s Direct Read Cable, a LevelVent Wellhead, or AquaVent Wellhead connector cable. The LCD screen contrast is adjustable to ensure easy viewing in any field condition. To transfer data files to a PC, the SRU connects using a USB cable. Levelogger Software is used to download, view, export, delete data and set up dataloggers. Through the Software, the SRU has upgradable firmware, which allows for future improvements and compatibility with new dataloggers.