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Level TROLL 400 Data Logger

Level TROLL 400 Data Logger
Level TROLL 400 Data Logger
Level TROLL 400 Data Logger
Level TROLL 400 Data Logger
Level TROLL 400 Data Logger
Level TROLL 400 Data Logger
Level TROLL 400 Data Logger
Ex Tax:0.00€
  • Model: Level TROLL 400
  • Weight: 124.00g
  • Dimensions: 21.60cm x1.83cm x1.83cm
  • MPN: LT400

Available Options

The Level TROLL 400 measures and logs water level, water pressure, and temperature in a maintenance-free system ideal for long-term monitoring at flood-prone or high humidity sites. Durable titanium construction guarantees long-lasting performance in fresh or saline groundwater and surface-water environments. Available in non-vented (absolute) pressure ranges up to 1120 ft (341 m). Integrate with telemetry services and HydroVu Data Services for real-time feedback on all of your water monitoring sites.


  • Sub-1 inch diameter for easy fit
  • Non-vented (absolute) pressure ranges up to 1120 ft (341 m)
  • Fully sealed, all titanium construction and sensors
  • Flexible communication protocols (4-20 mA, SDI-12, RS-485)
  • Direct-read or periodic data download capable
  • NIST calibration report
  • Rugged twist-lock cable sold separately


  • Zero maintenance – No desiccant required.
  • Convenient real-time data – Open communication protocols integrate easily with existing telemetry systems and HydroVu Data Services, SCADA, or data logger/sampling system.
  • Protect your data and your equipment – Solid titanium construction outlasts specially coated data loggers, even in harsh environments.
  • Reliable data – Advanced accuracy and precision provide high quality results you can trust.
  • Streamline data collection and analysis – Powerful software with special logging modes automates water level corrections, post-processing, report generation and data export.
  • Reduce field time – Low-power loggers last 10+ years.
  • Quick and easy data-sharing – View and share data on the spot using your mobile device. Intuitive VuSitu Mobile App is an all-in-one software package that provides auto-configuration, simplified calibration, directed data analysis, and automated report creation.


  • Level/Pressure/Temperature Data Logger
  • Win-Situ 5 Software
Accuracy ±0.1° C
Battery life 10 years or 2M readings
Dimensions Length: 21.6 cm (8.5 in.)<br> Diameter: 1.83 cm (0.72 in.)
External power 8 to 36 VDC
Fastest output rate Modbus: 2 per second<br> SDI-12 & 4 to 20 mA: 1 per second
Log Types Linear, Fast Linear, and Event
Output options Modbus/RS485, SDI-12, 4 to 20 mA
Range Absolute (non-vented)<br> 30 psia: 11 m (35 ft)<br> 100 psia: 60 m (197 ft)<br> 300 psia: 200 m (658 ft)<br> 500 psia: 341 m (1120 ft)<br> Burst:<br> Max. 2x range; burst > 3x range
Resolution ±0.005% FS or better
Temperature ranges Operational: -20 to 80° C (-4 to 176° F)<br> Storage: -40 to 80° C (-40 to 176° F)<br> Calibrated: -5 to 50° C (23 to 122° F)
Units of measure Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O<br> Level: in., ft, mm, cm, m
Logging Rate 2/s
Battery Type/Power Source 3.6V lithium
Memory 2.0 MB<br> 120,000 Data Records<br> 50 Data Logs
Materials Titanium body; Delrin® nose cone
Weight 124 g (0.27 lb)