Now Available - Interchangeable Cu/CuSO4 reference electrode elements available for GP Gun. This means that the instrument can now be used in fresh and brackish water environments, such as rivers, lakes and water tanks. Electrode stability is guaranteed for up to 7 days of continuous survey operation in fresh water (though life will be shorter in brackish water).

The plug-in electrodes can be used in combination with the standard Ag/AgCl electrode to maintain the unique on-line calibration feature of all Polatrak cathodic protection probes. This new feature when used in combination with the ultra-bright LED readouts makes this an ideal tool for low or zero-visibility river survey applications.

Electrode elements will sell for $125.00 each (specifications and prices are subject to change without notice).