The Aqua TROLL 100 Data Logger measures and records conductivity and temperature. A unique conductivity cell design allows for a wide, accurate measurement range in a narrow diameter instrument. Titanium construction resists corrosion, ideal for coastal, remediation and mine water monitoring projects. Deploy the Aqua TROLL 100 in depths up to 500 psi (1153 ft; 351.43 m). Get easy data access via telemetry systems and HydroVu Data Services, or direct-read Rugged Cable (sold separately).