Analog Potential Meter Kit

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All new M.C.Miller meters include a Calibration Certificate.

The Model IA voltmeter (Analog Potential Meter) is designed for ease of use by meter readers and corrosion technicians alike and the voltmeter comes with an integrated RE-5 reference electrode attached for "metallic structure-to-soil" potential difference readings.

The kit also includes a test lead for electrical connection to a metallic structure.

The voltmeter offers a 0 - 2 VDC range with a 10 MΩ input impedance and the analog display presents a color divided scale for convenient indication as to whether or not a carbon-steel structure is receiving a suitable level of cathodic protection, with respect to the accepted 0.85 V (850 mV) threshold value.

Note: Only positive voltage values are displayed


An optionally available electrode extension can be used to eliminate having to bend over to have the reference electrode placed in contact with soil – see, for example, our 30 inch Electrode Extension (Item #16203) below:

Analog Voltmeter:
  • 2½" taut-band rugged instrument
  • Weatherproofed neoprene gasket
  • 10 MΩ input resistance
  • Solid-state impedance amplifier
  • Operates on one small 9V transistor battery, low drain - long shelf life push switch to check battery condition, battery easily replaced and readily available.
  • Push switch to read potentials, current drain only while taking readings.
  • Scale marked 0VDC to 2VDC, color band: Red to 0.85VDC, Green to 2VDC.
  • Filter eliminates errors caused by AC, Up to 50 volts 50/60 Hz
  • Operating temperature: 0°F to 150°F (-18°C to 66°C)
  • Molded PVC housing
  • Plastic carrying case with resilient padding
  • Modular construction
  • Weight: 3.0 pounds (1.36 kg)
  • Size: 2.5 inches (6.35 cm) deep x 10.0 (25.4 cm) inches long (including the reference electrode).