WL650 Sonic Water Level Meter

Price$2,164.00 (US Only)


In Stock 0 - Available for Backorder

Global Water’s WL650 Sonic Water Level Meter is a self-contained, battery-operated meter that uses sound waves to measure well water level. Fast, accurate measurements are possible in the field or anywhere without the use of down-hole water level meters. The Sonic Water Level Meters are lightweight, compact, versatile, and easy to operate.

  • Overview

    The meter is simple to operate. Select either the NORMAL (10-500 feet) or DEEP (200 to 1500 feet)
    setting on the DEPTH switch. Then to measure a capped well, simply insert the duct into the access port and push the power-on switch. In a few seconds the water level will appear on the digital display. In the NORMAL setting, the sonic sounder stays activated for 5 seconds or 5 pings. Using the DEEP mode the level sounder emits 4 pings in16 seconds. For more measuring time, hold the switch down as long as necessary.

    Key Features:

    • Fast accurate water level measurements in seconds
    • Avoid cross contamination
    • No equipment to clean
    • Gain/Sensitivity option
    • Works in cased steel or PVC capped wells, partially cased rock wells, crooked wells and wells with pipes, wiring and operating pumps.

    For uncapped wells, use the provided cover plate. It slips onto the measuring duct and provides a seal for up to 6 inch diameter casings. Cover plates for larger diameters can be easily fabricated from plastic or metal sheet.

  • Specifications
    WL650 Water Level Meter Specifications  
    Measurement Range Normal 10-500 ft (3-152 m), Deep 200-1200 ft (61-366 m)
    Display Resolution

    0.1 ft

    Measurement Accuracy ±0.2% of reading.  Exclusive of temperature setting errors. *
    Operating Temperature

    30 to 140° F (-1 to 60° C)


    8 AA dry cell batteries

    Dimensions (LxHxW): (excluding sonic measuring duct) 7x4x5 in (18x10x13 cm)

    Sonic Measuring Duct Diameter

     5/8 in (16mm)
    The hole diameter must be at least large enough for 1/2 inch pipe thread.

    Sonic Measuring Duct Length

    2 in (5 cm)

    Weight 3 1/2 lbs. (1.5 kg)

    * Under certain conditions, accuracy may exceed this limit; when the well casing is discontinuous; when the well casing is highly corroded or rough; when large obstructions e.g. pipe joints or wiring exceed half the area of the well casing; if the well casing is less than 2 inches (5 cm) or greater than 10 inches (25.4 cm) in diameter.

  • Accessories

    WL650 Case for Sonic Water Level Meter

    WL650 Case for Sonic Water Level Meter

  • FAQs

    What makes the WL550 different from other YSI water level instruments?

    • It is an ultrasonic water level meter for wells
    • it is noncontact and easily portable
    • Includes a LED digital display that notifies the user of well water depth upon contact

    How will I know water depth and water level detection?

    The wL650 will display the water well depth on the LED display

    What applications is the WL650 best suited for?

    Primarily used in wells from 10’ to 500’ for normal wells, and 200’ to 2000’ for deep wells.

    How do I select my well depth?

    the WL650 has a switch on the display that toggles between normal and deep wells.

    Why use the WL650 Sonic Water Level Meter over the WL500 well sounder?

    The WL500 is ideal for aged wells that are not entirely straight, have debris, or have any well intrusions.

    Whereas the WL650 is ideal for wells that are typically straight with little debris to interfere with the unit.

    What are my power requirements?

    8 AA dry cell batteries

    Does the WL650 have datalogging capability?

    No, the WL650 is a handheld portable well level monitoring device and is display and read-only.

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