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Heron Little Dipper2


Heron H.OIL Interface Meter

Solinst Laser Marked Model 102 Water Level Meter

Quick Overview

Designed to accurately measure groundwater levels in small diameter applications. P4  is a 0.157" x 1.5" long standard probe with no weights. P10 3/8" x 1.5" beaded probe with 10 stainless steel weights (see picture).

Availability: In stock


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The coaxial cable has a heavy-duty jacket with permanent markings precisely laser etched on the cable every 1/100 ft. or each millimeter.  The cable reels smoothly, remains flexible, and hangs straight in the well. It comes in lengths from 100 ft. - 1000 ft. (30 m - 300 m).

A braided copper outer conductor gives flexibility and a stranded stainless steel central conductor gives strength. It is easy to repair and splice. The cable jacket is of heavy-duty polyethylene for durability.

Operating Principles

The Model 102 Water Level Meter uses a choice of two small diameter probe designs, attached to a narrow coaxial cable, fitted on a sturdy ergonomically designed reel. A standard 9 volt battery, housed in an easy-access battery drawer, powers the Water Level Meter.

When the probe enters water the electrical circuit is completed, sending a signal back to the reel where a light and clearly audible buzzer are activated. The water level is then determined by taking a reading directly from the cable at the top of the well casing or borehole.

A sensitivity control allows the buzzer to be scaled back or turned off while in cascading water, and ensures a clear signal in both high and low conductivity conditions.


Model 102 Probes are designed with segmented weights for flexibility. The probe tip uses a recessed design to minimize false signals in cascading water.

P4  0.157" x 1.5" long standard stainless steel probe weighing 0.35 oz, with no weights

P10 3/8" x 1.5" beaded stainless steel probe weighing 6.14 oz, with 10 stainless steel weights

Additional Information

Manufacturer Solinst
Is Featured No
Lead Time N/A