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M.C. Miller 702 Underground Insulation Checker

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Checks all types and sizes of buried insulators from remote test leads
  • Flanges, dressers, couplings, unions, carrier pipe to casing, whether parallel or in series.

100% Accurate
  • Not effected by pipe to soil potentials or protection voltages.
Indicates continuity of connection between pipe and test lead
Simple to operate
  • Simplified operation procedure reduces training time to 10 minutes, following step by step instruction sheet.
Cost Effective
  • Saves time compared to present test procedures.


  • Enclosure: Molded Glossy Black Phenolic MIL-M-14, CFG. Designed to meet IP54 standard.
  • Power Source: Two D size alkaline batteries and two AA batteries
  • Operating Temperature Range (alkaline battery limited): -20°C to +55°C
  • Recommended Storage Temperature Range ( alkaline battery limited): -20°C to +35°C
  • Output Voltage: 1.5V DC
  • Dimensions: 7”L x 5.25”W x 4”H [17.8cm x 13.3cm x 10.16cm]
  • Weight: 3lbs [1.36kg]