In-Situ Level TROLL 400 level logger

Professional level and temperature data logger

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Sub 1-inch full titanium professional device to measures and logs water level, water pressure (absolute) and temperature. Ideal for long-term level monitoring where well diameter, reliability and accuracy are top concerns.

 - Long- and short-term groundwater and surface water level (absolute) and temperature monitoring
- Several pressure ranges up to 500 psia (341 m)
- Full range 3D factory calibration
- Unique anti-drift system
- Setup, view and download logs via Bluetooth with VuSitu mobile app
- Titanium construction with less than 1 inch diameter
- Twist-Lock Cable for deployment and communication  (customized length up to 1200 m)
- compatible with VuLink telemetry and 3rd part loggers

Diameter: 1,83cm
Length: 21,6cm
Weight: 124g
Pressure ranges (absolute): 11m / 60m / 200m / 341m  
Pressure accuracy: ±0,05% FS from 0 to 50 °C
Temperature ranges: Operational: -20...80°C / Storage: -40...80°C / Calibrated: -5...50°C
Temperature accuracy:  ±0,1°C
Battery life: 10 years or 2M readings
Data records: 120.000
Output options: Modbus/RS485, SDI-12, 4...20 mA
Burst pressure: Max. 2x range; burst > 3x range

More details check datasheet