- Material & Durability: Fully sealed, all-titanium body and sensors for long-term use in fresh, saline, or contaminated water.
- High Accuracy: Engineered for aquifer characterization with high-resolution data and anti-drift stability.
- Advanced Logging: Multiple modes—Linear, Fast Linear, Event, True Logarithmic, Step Linear—for capturing transient events such as slug tests.
- Automatic Compensation: Vented (gauged) models provide automatic barometric pressure compensation for precise water level readings.
- Large Memory: 4 MB internal storage holds 260,000+ data points for extended deployments.
- Flexible Communication: Supports SDI-12, 4–20 mA, and RS-485 for easy system integration.
- Low Power: Long-life batteries enable 10+ years of operation with minimal field maintenance.
- Compact Size: Sub-1-inch diameter for use in narrow wells and tight spaces.
- Easy Deployment: Rugged twist-lock cables and user-friendly software (VuSitu, HydroVu) simplify setup, logging, and data retrieval.
Level TROLL 700 Data Logger
Designed specifically for aquifer characterization, the Level TROLL 700, with titanium construction, 4 MB memory that holds 260,000 data points, higher data resolution, and advanced logging modes, is the professional’s choice for accurate and reliable results.The Level TROLL 700 provides continuous monitoring of water level, water pressure, and temperature. Available in pressure ranges up to 500 psig for vented configurations and 1000 psia for non-vented configurations.
This premier data logger is ideal for specialized applications. 3D factory calibration and our unique anti-drift system ensure accuracy. Low-maintenance deployment saves on time in the field and cost. And with our shared ecosystem, you can easily integrate instrumentation, in-well telemetry, and HydroVu Data Services.
- Aquifer Characterization: Conducting single/multi-step pumping tests and slug tests to evaluate aquifer hydraulic properties.
- Remediation Monitoring: Tracking groundwater and vapor conditions during in-situ remediation of contaminated sites.
- Surface Water & River Gauging: Continuous monitoring of rivers, lakes, wetlands, and estuaries for stage, flow, and tidal influence.
- Stormwater Management: Establishing baselines and monitoring water levels during storm events.
- Coastal & Flood Studies: Measuring tidal impacts, harbor water levels, and storm-surge variations.
- Geothermal Research: High-resolution pressure and temperature logging for geothermal system analysis.
- Diameter: 0.72 in (1.83 cm) – fits in narrow wells.
- Construction: All-titanium body and sensors for high durability.
- Memory: 4.0 MB internal storage (~260,000 data points).
- Battery: 3.6V lithium with ~10 years life or up to 2 million readings.
- Logging: Multiple modes — Linear, Fast Linear, Event, True Logarithmic, Step Linear (up to 4 readings/sec).
- Outputs: SDI-12, Modbus/RS485, and 4–20 mA.
- Accuracy: ±0.01 ft (up to 15 ft range) and ±0.1% of reading (above 15 ft) for vented models.
- Pressure & Range Options
- Vented (Gauged): Up to 500 psig (e.g., 15 psig = 35 ft depth).
- Non-Vented (Absolute): Up to 1000 psia (≈2273 ft depth).
- Other Features
- Calibration: NIST-traceable, factory-calibrated.
- Compensation: Automatic for vented models; BaroTROLL used for non-vented.
- Software: Compatible with Win-Situ and VuSitu for setup, logging, and analysis.
