The economical Rugged TROLL 200 Data Logger measures and logs water level, water pressure, and temperature, also featuring a cabled setup for direct-read or telemetry data access. This non-vented (absolute) water level logger is ideal for flood-prone or high humidity environments, with titanium construction for added durability in fresh or saline groundwater and surface-water environments. Integrate with telemetry systems and HydroVu Data Services for real-time feedback on all of your water monitoring sites.