Aqua TROLL 100 Data Logger

Measures and records conductivity and temperature.


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 or direct-read Rugged Cable (sold separately).


-Sub-1 inch diameter (0.72 in; 1.83 cm)

-All titanium electrodes and housing

-Full range conductivity with optimum accuracy – 5 to 100,000 µS/cm

-Flexible communication protocols (4-20 mA, SDI-12, RS-485)

-NIST calibration report for guaranteed accuracy

-Rugged Twist-lock cable (sold separately)

    • Fits your deployment – Compact design fits narrow diameter wells.
    • Protect your data and your equipment – Solid titanium construction outlasts specially coated data loggers, even in harsh environments.
    • Simplify project setup and control – Open communications protocols easily integrate with existing telemetry systems, plus get 24/7 data and automatic event alerts.
    • Streamline data collection and analysis – Powerful software with special logging modes automates water level corrections, post-processing, report generation and data export.
Product Specs
Weight 1 lbs
Dimensions12.4 x 0.72 in
Protocols4-20 mA, Modbus/RS485, SDI-12
Memory4.0 MB
Logging ModesEvent, Linear, Linear Average
Battery Type3.6 V lithium
Diameter1.83 cm (0.72 in.) OD
Warranty2 Year
Conductivity Sensor Range5 to 100,000 µS/cm
Conductivity Sensor Accuracy±0.5% + 1 µS/cm
Battery Life5 years