For Every Application and Budget From advanced aquifer characterization to economical data collection, the In-Situ® Level TROLL® series of level/pressure instruments yields accurate level measurement and offers powerful data logging and flexible communications. With five models of self-contained data loggers available, you’ll find an instrument suited to your application and budget.
Level TROLL® 700—Professional’s choice for accurate water level monitoring and aquifer characterization
Level TROLL® 500—Long-term monitoring solution for all applications, even saltwater
Ultra-rugged, all-titanium design – Perfect for fresh and marine water monitoring. No more worries about corrosion. Excellent for marine, brackish and acidic sites.
Super accurate sensors – record minute changes in water level and temperature.
TIG-welded seals – Prevents flooding of instrument.
Ultra-low power system guarantees 5 years or 2-million readings – Forget changing batteries or running out of power.
Uses external battery or line power – no worries about running out of power.
RS-485 MODBUS, SDI-12, and 4-20mA – provides for easy connections to existing and online systems
Twist-Lock connectors that “lock” tight – 100% reliability
Halogen-free cables (LSZH rated) – no worries of toxic fumes if submitted to fire
Sealed desiccant options – allow for barometric compensation for maximum accuracy while preventing water & humidity intrusion
Extend cables by simply adding additional segments – maximizes your investment and maintain flexibility with your unit.
-20 to 80ºC temperature range – useful for geothermal and hot spring research and monitoring
Easiest ever Win-Situ® software – get the data you need fast! Large, sizable display that’s easy to see from a distance.
Linear logging – perfect for long-term monitoring
Pause logging feature – Pause logging when removing a unit. Reinstall and restart where you left off!
Specify start and stop times for logging – collect the data you need up to the date you want and no more
Ability to “undelete” files from the unit – no worries of accidentally deleting your data.
Data saved by sites not files – collect and save information by site automatically. No need to transfer data later.
Easy-to-read memory and battery gauges – know exactly how much is left
Friendly Wizards guide every step – reduces complicated steps and the need for tedious manuals
Submersible ranges up to 351m / cable length up to 1200m – measure to the depth you need.
FCC and CE emission tested – prevents susceptibility to outside emission interference and transient electrical surges
Version, range, and manufacturing info printed on side of the unit – know the details of the unit without opening the software. Reduces accidental over pressuring
Level TROLL® 700 only features & benefits
Restart logarithmic sampling within the same file – Perform multi-step aquifer tests with ease!
New logging modes – Linear, Linear Average, Event, True Logarithmic, Step Log, Fast Linear. Log the way you want to!
Up to 50 logging files can be programmed in the Level TROLL® – complete flexibility and new possibilities in logging
Takes samples as fast as 0.25 seconds (4 samples/sec) – perfect for earthquake detection and wave modeling
Up to 350,000 data points of memory (4MB) – reduces the interval between data collection
