As the industry leader in high-quality vented and non-vented data loggers for the continuous measurement of water level, pressure and temperature, we offer water level monitoring solutions to suit every project and budget.

From our tough and affordable Rugged TROLL water level loggers to our Level TROLL line for Practical, Performance and Specialized use, you can choose the instrument right for you, and know that simple setup, an Anti-Drift System, 3D Factory Calibration, and fully sealed, titanium design will ensure long-lasting performance, even in the harshest environments.