Solinst AquaVent™ Water Level Logger

Solinst AquaVent™ Water Level Logger

  • Automatic Barometric Compensation Reduces time required for post data processing
  • Continuous Reliable Water Level Data Suitable for long-term monitoring projects
  • Multiple Built-In Hydrophobic Filters & Desiccants No replacing required - reduces maintenance
Product Options


The new Solinst AquaVent delivers accurate water level and temperature measurements in shallow groundwater and surface water applications up to 65 ft (20 m). It consists of pressure and temperature sensors, hydrophobic filters and datalogger housed within stainless steel measuring 7/8” x 7” (22 mm x 178 mm). Its design utilises hydrophobic filters and permanent factory installed desiccants making the AquaVent virtually maintenance free.

The AquaVent comprises of a gauged pressure transducer that is open to the atmosphere via a vented cable to the surface. Atmospheric pressure is applied to the transducer diaphragm, applying a cancellation effect to the barometric pressure. This produces a water level recording.

The vented pressure sensor has been designed using Hastelloy®, making it extremely durable whilst maintaining its accuracy in various temperatures and monitoring applications. The sensor produces an accuracy of 0.05% FS and is capable of withstanding 2 times over-pressure without any permanent damage.

The Aquavent is compatible with all Solinst Levelogger Software and App, offering multiple logging options including linear, event and scheduled sampling. There is also the option of communicating through telemetry systems using MODBUS (RS-232/RS-485) or SDI-12 protocols. The AquaVent is available in ranges of 5, 10 and 20 metres.

Manufactured by: Solinst
Model: Solinst AquaVent™ Water Level Logger

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Shallow applications: up to 65 ft (20 m)
Aquifer characterization: pumping tests, slug tests, etc.
Stream gauging, lake & reservoir management
Watershed, drainage basin & recharge monitoring
Stormwater & runoff monitoring
Long-term water level monitoring in wells & surface water


Level Sensor Piezoresistive Silicon with Hastelloy Sensor
Accuracy ± 0.05% FS Typical
Stability of Readings Superior, low noise
Units of Measure m, cm, ft., psi, kPa, bar, ºC, ºF
Normalization Automatic Temperature Compensation
Temp. Comp. Range. 0º to 50ºC
Temperature Sensor Platinum Resistance Temperature Detector (RTD)
Operating Temperature 20ºC to 80ºC
Temp. Sensor Accuracy ± 0.05ºC
Temp. Sensor Resolution 0.003°C
Battery Life 8 years - based on 1 reading / minute
Clock Accuracy ± 1 minute/year (-20ºC to 80ºC)
Thermal Response Time 3-5 minutes
Size 7/8" x 7" (22 mm x 178 mm)
Weight 4.6 oz. (129 grams)
Wetted Materials Delrin®, Viton®, 316L stainless steel, Hastelloy
Sampling Modes Linear, Event & User-Selectable with Repeat Mode, Future Start, Future Stop, Real-Time View
Barometric Compensation Automatic
Measurement Rates 1/8 sec to 99 hrs