The Rugged TROLL 200 is built for long- and short-term groundwater and surface water level monitoring, in pressure ranges up to 250 ft (76 m). Titanium and sealed construction — including a sealed battery to reduce potential leak paths — outperforms and outlasts specially coated data loggers, and 3D factory calibration with In-Situ's anti-drift system keeps it accurate for years of maintenance-free operation.

Set up, view, and download logs directly from your phone or tablet with a TROLL Com Plus (sold separately) and the free VuSitu mobile app — tag data with site photos and GPS coordinates, then export in standard .csv format. Connect to VuLink telemetry for remote data access and automatic barometric compensation, or download with the Rugged TROLL Docking Station. Pair with a Rugged BaroTROLL (sold separately) for barometric compensation when needed. 1.03 in (2.62 cm) diameter, 2 MB memory (120,000 data sets / 360,000 data points).

Note: Cable and communication accessories sold separately.