**GMC Electrical, Inc. will be closed from 12/19/2025 (mid-day) through 1/02/2026 for the Holidays. 
Normal business hours will resume of Monday January 5th, 2026. Have a Happy Holiday Season!

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    • STAPERM CU-7-PCIR-100CM² STAPERM CU-7-PCIR-100CM²
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      STAPERM CU-7-PCIR-100CM²

      IR FREE COUPON REFERENCE ELECTRODE IR-Free Coupon with Porous Ceramic Reference Electrode On-Potential, OFF-Potential Readings and Native Potential Readings with AC Coupon for Underground Applications   The CU-7-PCIR electrode is designed for...

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    • STAPERM CU-7-PCIR-20CM² STAPERM CU-7-PCIR-20CM²
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      STAPERM CU-7-PCIR-20CM²

      IR FREE COUPON REFERENCE ELECTRODE IR-Free Coupon with Porous Ceramic Reference Electrode On-Potential, OFF-Potential Readings and Native Potential Readings with AC Coupon for Underground Applications   The CU-7-PCIR electrode is designed for...

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    • STAPERM CU-7-PCIR-200CM² STAPERM CU-7-PCIR-200CM²
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      STAPERM CU-7-PCIR-200CM²

      IR FREE COUPON REFERENCE ELECTRODE IR-Free Coupon with Porous Ceramic Reference Electrode On-Potential, OFF-Potential Readings and Native Potential Readings with AC Coupon for Underground Applications   The CU-7-PCIR electrode is designed for...

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