The TD-Diver is a submersible datalogger for long-term uninterrupted, real-time water level monitoring using a pressure sensor when submerged at a fixed level under the water surface. The pressure sensor measures the equivalent hydrostatic pressure of the water above the sensor diaphragm to calculate the total water depth. The Diver autonomously measures pressure and temperature and records them in its internal memory. The Diver is ideal for ground and surface water level applications.


  • Groundwater level monitoring
  • Groundwater temperature recording


  • Designed for up to 10 years of use
  • Solid enclosure to make borehole deployments easier
  • Spend less time in the field with fast download speeds
  • Large memory enables user to take a sample every 15 minutes for 2 years
  • Enhanced data integrity with the new backup memory feature
  • Compatible with all existing Diver accessories