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 simple-to-use, handheld, portable unit. It consists of a Control Unit and connected Probe, and is supplied with a plastic cover for larger wells and a Solinst Field Bag. The Sonic Water Level Meter Probe transmits a sound wave into the well or pipe and measures the time for the pulse to return after contacting the water. Readings are shown on the clear LCD display on the Control Unit. The Sonic Water Level Meter allows the programming of parameters like well diameter, offsets, temperature, etc. Maximum and minimum detection ranges can also be set to ignore any interference from known well features or obstructions, and to narrow down the measurement range for obtaining the most accurate water level readings 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)