Contact J. R. Overseas company

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44 Lexington Avenue
Gloucester, MA, 01930


J. R. Overseas is a US company (Gloucester, Massachusetts) offering worldwide the finest in marine moisture and corrosion meters.  Our customers include safe-boating enthusiasts such as boat owners, boat manufacturers, marinas, boat yards, boat brokers and marine surveyors.

Order Moisture Meters

Here find our offerings of fine non-destructive marine moisture meters from the world's finest manufacturers: Electrophysics, Tramex and Sovereign.  No marine surveyor, boat owner, boatyard or marina should be without one.

Sovereign Quantum Moisture Meter


Sovereign Quantum Moisture Meter


The Quantum is specifically designed for marine use.  It includes a calibration check facility.  The Quantum offers both deep and shallow functions for in depth and/or near surface moisture detection in GRP and wood.

Air temperature and humidity are automatically compared for Dew Point temperature to be displayed. Spot surface temperature readings can also be taken to warn of potential condensation problems, misleading moisture readings, or unsuitable conditions for commencing coating applications.

Surveyors can establish a datum reading and then select the Comparative function to display readings automatically above or below selected datum, enabling large surface areas to be quickly assessed.

The Sovereign Quantum comes with a 2 year limited warranty.

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