Tinker & Rasor CPV-4 Voltmeter
Cathodic protection voltmeter with 11 MΩ impedance, LCD digital meter, 2 and 20 volt DC scale and usage of 9 volt batteries.
Cathodic protection voltmeter with 11 MΩ impedance, LCD digital meter, 2 and 20 volt DC scale and usage of 9 volt batteries.