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Solinst introduces field readout unit for real-time water levels

September 28, 2021  By Ground Water Canada

Georgetown, Ont. – Solinst Canada Ltd. has introduced a new rugged field data transfer device that also provides instant water level readings from a connected Solinst datalogger.

The Model 4001 Solinst Readout Unit (SRU) connects to a Levelogger’s Direct Read Cable, a LevelVent Wellhead, or AquaVent Wellhead connector cable. It features a compact, ergonomic design that is water-resistant. Using push-buttons, it is easy to power-on and navigate through all SRU menu options. The LCD screen contrast is adjustable to ensure easy viewing in any field condition. The SRU uses a 9V replaceable battery to operate, and has user-upgradeable firmware.

With the SRU connected, you 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 a built-in barometer, which provides the option of showing and saving real-time water level readings corrected for barometric pressure. Real-time logging is convenient when performing aquifer tests, such as pumping tests.


The SRU is also a data download and storage device. It has a robust flash memory to save multiple internal log files from a number of different dataloggers. Saved files are transferred to a PC by connecting the SRU using a USB cable. Files are downloaded and opened using Levelogger Software.

The SRU provides access to information about the connected datalogger’s battery level, memory, serial number, firmware version, and logging mode. This is useful for quickly checking the status of a field-located datalogger without removing it from its deployment.

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