showing corrosion events on a New York ferry
Click to enlarge
a multi-zone corrosion monitor with data logging capability.
Used as a monitor, an LCD display and LEDs provide indication
of the vessel or structure's level of cathodic protection. Used
as a data logger, the corrosion history can be recorded and examined.
zone requires a reference electrode to be installed. Up to 3 zones
can be monitored with one Sentrylog
here to read more about Sentrylog......
more information on zones and corrosion in general, see corrosion