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eno scientific
Well Sounder 2010 PRO

The Well Sounder 2010 PRO is a portable sonic water level meter to measure static water level in wells, piezometers or boreholes.

This portable handheld unit uses sound waves to measure the distance from the top of the well to the water level. This eliminates the need to lower anything into the well. Unlike standard water level tapes these acoustic meters are free from well contamination issues, there is no clean up and nothing to get stuck in the well.

Simply place the probe into a well cap opening and turn the unit on, within seconds the unit will display the static water level measurement.


  • Portable handheld water level meter
  • Included industrial strength carrying case with foam lining
  • Separate meter and probe for easy access to well heads in confined spaces
  • Sensor probe fits into a standard vent connection on the well cap
  • Auto temperature compensation
  • Easy to read, adjustable LCD display
  • Built-in programmable data logger with immediate data capture
  • Up to 25 million data points stored in non-volatile memory
  • USB port for easy data download
  • Internal real time clock for time/date stamped data points
  • Powered by 6 AA batteries for up to 500 hours of use
  • Optional power save mode for extended battery life
  • Available AC or DC power adaptors

Installation Photos and Tips

Frequently Asked Questions



Watch Well Sounder Pro Video


Well Sounder 2010 PRO All In One Water Level Indicator

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The Well Sounder 2010 PRO

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This water level indicator also allows the user to perform unsupervised drawdown testing or long term groundwater monitoring with it's built-in data logger capable of storing up to 25 million time/date stamped data points.

These water level meters can be set to take measurements at intervals between 1-60 minutes. It also has a power save function, which will put the unit to sleep between measurements to save battery life. The water level meter will turn on, take a measurement and turn itself back off.

After you are done with the test simply return to the testing site and retrieve the Well Sounder 2010 PRO. The logged information can be easily downloaded with the included USB Cable and will be displayed as a data file to be opened in a program of your choosing. There is no special software required and it works with any operating system. If the data won't be downloaded immediately, take advantage of the Well Sounder's ability to give each well an ID number, which will be stored with the logged data to help keep the data organized.

Flow Meter Compatible

The Well Sounder 2010 PRO also has the ability to interface with standard pulsed flow meters.

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When the WS131 Flow Meter option is utilized, the water level meter will measure and log total flow, flow rate and the rate of recovery of water in the well. If there are known defects in the well, such as a rock fissure, simply use the water level meters range minimum to ignore past the distance of the known interference.

You can also enter the well depth and diameter which the Well Sounder will use to calculate the total water volume in the well as well as drawdown and recovery rates.

This water level instrumentation will display measurements in English or Metric units.

Well Sounder Compatible Flow Sensor - WS131 Flow Meter

WS131 Flow Meter Specs



Well Sounder 2010 PRO All In One Water Level Indicator.  Includes carrying case



Options and Accessories:

WS2100 Flow Meter Kit with Well Sounder 2010 Pro

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The Well Sounder and the WS131 Flow Meter are also available together in the WS2100 Flow Meter Kit.

The Eno Scientific WS2100 Flow Meter Kit combines all the instrumentation needed to perform a complete well draw down test. Starting with our popular sonic water level meter, the Well Sounder 2010 PRO, with its built-in data logger and USB computer connectivity. Add the new Eno Scientific WS131 Flow Meter with a variety of housing sizes and you are ready to start drawdown testing.

Our flow sensors come with Well Sounder compatible cables which eliminate the hassles of wiring multiconductor flow meters and supplying external power. The WS131 Flow Meter simply plugs into the Well Sounder 2010 PRO and it is ready to go. The Well Sounder's proprietary self calibration routine makes the process simple.

Complete groundwater monitoring begins by turning on the Well Sounder 2010 PRO, enabling the data logger and performing your drawdown test. The Well Sounder will record the static level and the pumped volume at an interval of your choosing between 1 second and 60 minutes for the duration of your test. When the test is complete, connect the Well Sounder 2010 PRO to your computer with the included USB cable. A window pops up with the data file which can be imported into Excel and graphed or printed and simply attached to your report.

The kit comes complete and ready to go including:

- Well Sounder 2010 PRO with probe

- WS131 Flow Meter

- Accessory Splitter

- USB cable

- 3 Flow Meter Housings 1″, 1.5″, and 2″

- 3 Plugs with Retaining Nuts

- User Manuals, Quickstart Guide and Groundwater Temperature Map

- Heavy Duty Carrying Case


WS2100 Flow Meter Kit with Well Sounder 2010 Pro....#WS2100....$1899


WS2100 Flow Meter Kit without Well Sounder 2010 Pro....#WS2105....$850



Accessory Splitter

Accessory Splitter

Connect multiple devices to your Well Sounder or Well Watch in addition to the probe, such as the flow meter or analog output adapter. (Included in the Flow Meter Kit). Part #5220...$29


10' Probe Extension Cable

10ft Probe Extension Cable

Extend the reach of your probe by 10 feet. Part #5201-10....$29


Plug-in 120V AC Power Adapter

AC Power Adapter

This cable allows you to power your Well Sounder or Well Watch by plugging it into a standard power outlet. Part #5300....$19


Breakout Adapter

Breakout Adapter

This adapter provides screw terminals to allow the Well Sounder to connect to industry standard flow meters with switched or TTL level inputs, it also allows connection to the Well Sounder's 0-5 VDC alarm output signal. (Also requires the Accessory Splitter)....#5205...$79


Analog Output Adapter

Analog Output Adapter

This adapter produces an analog output signal, both 0-5volts and 4-20ma, or the 0-5volt alarm signal from the from the Well Sounder. (Also requires the Accessory Splitter)....#5206....$189


Flow Meter Housing Plug

Flow Meter Housing Plug

This plug is used in the flow meter housing when the the housing is permanently installed and the flow meter sensor is not being used. (3 are included in the Flow Meter Kit)....#5425...$15


Flow Meter Housings

Flow Meter Housings

The flowmeter housings are used with the flowmeter sensor to measure water flow. The housings can be permanently installed then left in place and plugged when the test is completed. (1 ea of 1in, 1.5in, and 2in are included in the Flow Meter Kit)



1" PVC tee #5431 $88
1.5" PVC tee #5433 $83
2" PVC tee #5434 $94
3" PVC saddle tee #5436 $138
4" PVC saddle tee #5437 $143
6" PVC saddle tee #5438 $160