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In-Situ Level TROLL

In-Situ Level TROLL

Item no.: 5050020 (Level TROLL 400) Item no.: 5050014 (Level TROLL 500) Item no.: 5050012 (Level TROLL 700) Item no.: 5050025 (Level Baro TROLL)

Advantages at a glance

  • Extra robust probe body and sensor made of titanium
  • Extra slim design
  • Extended measuring and log modes
  • Bluetooth interface
  • Telemetry capable with the new VuLink

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In-Situ Level TROLL

The Level TROLL series comprises 3 powerful level loggers for pressure and temperature measurement. With extended measuring modes, particularly slim design (< 1 inch) and titanium probe body and pressure sensor, they are specially designed for measurements in groundwater - even under extreme conditions and up to 700 m water column. However, log frequencies up to 4 Hz and the high precision also make them ideal for demanding measurement series in surface water or industrial plants.

In addition to the Twist-Lock cable connection, all Level Trolls have a BT interface and are telemetry-capable with the new In-Situ VuLink.

Level TROLL® 400

  • Absolute pressure sensor (unvented), up to 341 m water column
  • Recording modes: linear, linear/fast, event
  • 2 MB memory (120 000 readings), 2 Hz log frequency

Level TROLL® 500

  • Relative pressure sensor (vented), up to 351 m water column
  • Recording modes: linear, linear/fast, event
  • 2 MB memory (120 000 readings), 2 Hz log frequency

Level TROLL® 700

  • Optimal for characterising aquifers
  • Available with relative or absolute pressure sensor, up to 693 m water column
  • Recording modes: linear, linear/fast, linear average, event, linear/step, full logarithmic
  • 4 MB memory (250 000 readings), 4 Hz log frequency

Level Baro TROLL®

  • Same dimensions, also with titanium pressure sensor
  • 1 MB memory (60 000 readings), log frequency per minute
Operating temperature: -20 to 80 °C (-4 to 176 °F)
Dimensions: 2.08 (OD) x 22.9 cm (Level TROLL 400)
1.83 (OD) x 21.6 cm (Level TROLL 500, 700)
Weight: 245 g (Level TROLL 400);
197 g (Level TROLL 500, 700)
Material: Titanium
Accuracy pressure: ±0.1% full scale
Accuracy temperature: ±0.1 °C
Output options: open communication protocols including, Modbus/RS485, SDI-12, and 4-20 mA
Power: Internal battery or line power / solar panel

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