Solinst 104 Sonic Water Level Meter

  • Get a depth to static water level reading within seconds
  • No need to lower any equipment down the well/pipe
  • Measures static water level to 600 m (2000 ft)
  • Backed by a Solinst 3-year warranty
Product Options


The Solinst Sonic Water Level Meter is a portable, acoustic ranging instrument designed to simply and quickly measure depth to static water level in a well, piezometer, sounding tube, or any closed pipe.

The Sonic Water Level Meter reports static water level measurements without having to put any instruments down the well, eliminating any introduction of chemicals and the need to decontaminate equipment or wells.

The Solinst Sonic Water Level Meter works in straight or crooked pipes, and is ideal for wells with difficult access. Depth measurements to 600 m (2000 ft) are possible.

Where does the Sonic Water Level Meter work and how is it installed?

The Sonic Water Level Meter is designed to sit in the vent opening of a standard well cap, or the opening of a Solinst 2" Locking Well Cap. A reading is obtained within seconds of turning the Sonic Water Level Meter on. Larger diameter wells (over 8") or wells with large openings can limit sound wave detection, but with adjustments, accurate water level readings can be obtained. In the case of large diameter wells or boreholes, use a drop tube to the water. For wells with larger openings, the Solinst supplied plastic disc can be used to create a seal to contain the sound waves.

Manufactured by: Solinst
Model: Solinst 104 Sonic Water Level Meter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


-Depth to static water level detection in any well, piezometer, sounding tube, or closed pipe
-In wells and boreholes that are difficult to access
-When the annulus space between well casing and a pump is too small for other Water Level Meters
-Contaminated or corrosive environments where you do not want to lower equipment down well
-To obtain very quick depth to water level measurement


Sonic Water Level Meter Specifications
Control Unit dimensions: 19 x 9 x 4 cm (3.5 x 7.5 x 1.5")
Control Unit weight: 390 g (14 oz)
Probe dimensions: 16 x 8 x 7 cm (6 x 3 x 3")
Probe diameter: 1.7 cm (5/8")
Cable length: 1.8 m (6 ft)
Operating temperature: -20 to 45ºC (-10 to 110ºF)
Power: 6 AA replaceable alkaline batteries
Battery life: Up to 500 hours of use
Up to 21 days in power save mode
Units of measurement: Metric or English options
Accuracy: 3 cm (0.1 ft)
Resolution: 1 cm (0.05 ft)
Water level reading update
~ 1 sec @ 150 m (500 ft)
~ 4 sec @ 600 m (2000 ft)
Operating range: 3 to 600 m (9 to 2000 ft)



No, Solinst certifies that PFAS is not used, or knowingly present in the manufacturer, or production of their products.