Level TROLL 700 (Vented)

Manufacturer: In-Situ
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Choose the titanium Level TROLL® 700 instrument when you need a water level instrument with exceptional performance. Professional logging options expand functionality:

  • Linear average, step linear, true logarithmic, and fast linear (4x/second) logging in addition to standard linear, fast linear, and event
  • A fast logging rate of 4 logs per second
  • "Pause" and "Restart" logging features—Restart logarithmic sampling within the same file

Key Features

  • Integrated Modbus/RS485, SDI-12, and 4-20 mA simplify connection to SCADA and telemetry systems
  • 4 MB memory
  • Fastest logging rate and Modbus rate of 4 per second
  • Fastest SDI-12 and 4-20 mA output rate of 1 per second
  • Sensor accuracy of ±0.1% full scale
  • Vented (gauged) and non-vented (absolute) instruments
  • Narrow diameter body (0.72” OD)
  • Uses Win-Situ® software for simplified setup and fast data downloads

Range of Deployment Options

  • 1.83-cm (0.72-in) diameter titanium housing is suitable for harsh environments; the TROLL Shield Antifouling Nose Cone extends instrument depolyments at high-fouling sites

Durable Design

  • Titanium

Extended Battery Life

  • 10 years or 2M readings

Data Download

  • Uses Win-Situ® Software and RuggedCable® System

Pressure Sensor

  • ±0.1% full scale

Temperature Sensor

  • ±0.1° C

Advanced Logging Options

  • Linear
  • Fast linear
  • Linear average
  • Step linear
  • Event
  • True logarithmic

SCADA and Telemetry Ready

  • Uses open communication protocols, including
    • Modbus/RS485
    • SDI-12
    • 4-20 mA

Power Options

  • External battery pack
  • Line power

  • Aquifer characterization—Step-drawdown tests, constant-rate pump tests, and slug tests
  • Multi-zone aquifer monitoring
  • Real-time monitoring via telemetry
  • Stormwater monitoring
  • Tide/harbor monitoring