Key Specifications

Aqua TROLL® instruments are designed to meet your monitoring requirements. Features include:

Range of deployment options—0.72-in (1.83-cm) diameter titanium housing is suitable for harsh environments. The TROLL® Shield Antifouling System further extends instrument deployments.

Extended battery life—5 years or 200,000 readings (1 reading = time and date plus all available parameters polled or logged from the device)

Flexible communications—Modbus/RS485, SDI-12, and 4-20 mA

Supported parameters—Actual conductivity, specific conductivity, salinity, total dissolved solids, resistivity, density

Accurate readings
Conductivity sensor: < 80,000 µS/cm ±0.5% of reading + 1 µS/cm; > 80,000 µS/cm ±1.0% of reading
Temperature sensor: ±0.1° C



Aqua TROLL 100 Logs Conductivity and Temperature

The Aqua TROLL® 100 Instrument measures and logs conductivity and temperature. The cell design allows for a wide measurement range in a narrow diameter instrument (0.72 in; 1.83 cm).

Rugged Design

  • Titanium housing safeguards against corrosion.
  • Sealed to withstand pressures of up to 500 psi.

Extended Deployments

  • Typical battery life is 5 years or 200,000 readings. External batteries, solar power, or external 8-36 VDC options are available.
  • TROLL® Shield Antifouling Guard reduces fouling and increases deployment times.

Accurate Results

  • Instruments are factory calibrated and validated with NIST®-traceable standards.
  • TROLL Shield Antifouling Guard improves instrument accuracy and performance.



















Aqua TROLL 100

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