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water level data-logger / temperature / pressure / Modbus

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water level data-logger water level data-logger - LT500


  • Measured quantity:

    temperature, pressure, water level

  • Connector type:

    Modbus, RS-485

  • Display:

    without display

  • Other characteristics:

    rugged, cost-effective, continuous

  • Memory capacity:

    50 unit


The Level TROLL 500 is In-Situ’s most popular water level data logger. A cost-effective option suited to a wide variety of projects, the Level TROLL 500 logs continuous measurements of water level, water pressure, and temperature. Titanium construction offers durability and long-lasting performance in fresh or saline groundwater environments. Available in vented (gauged) pressure ranges up to 1153 ft (351 m). Integrate with telemetry systems and HydroVu Data Services for real-time feedback on all of your water monitoring sites.


Sub-1 inch diameter
Vented (gauged) pressure measurement for automatic atmospheric compensation
Fully sealed, all titanium construction and sensors
NIST calibration report
Flexible native communication protocols (4-20 mA, SDI-12, RS-485)
Customizable Rugged Twist-lock Kevlar woven cable (sold separately) suitable for use in high solvents

Use data immediately – Vented configuration doesn’t require corrections for barometric pressure changes.
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 and HydroVu Data Services, plus get 24/7 data and automatic event alerts.