Check Outlet Grounding Accuracy - The outlet tester diagnoses wiring conditions such as open ground, open neutral, open hot, and reverse polarity, ensuring your outlet is correctly wired and properly grounded. Reliable Grounding Performance - Accurately verify the functionality of your earthing systems and grounding products. A must-have ground tester for and plug tester for electrical outlets. Detects Electrical Conductivity - The conductivity test pen features copper probes and a built-in indicator light to quickly determine the presence of conductive materials in grounding sheets, mats, or pillow cases. Designed to work with grounding sheets, grounding mats, blankets, wristbands, and pillow covers, this kit ensures your products are actually conducting and providing effective grounding. Compact and easy to carry, this grounding meter tester for earthing set is essential for home users and frequent travelers. Helps verify electrical outlet integrity and grounding connection in any space., Manufacturer: CTRLZS