GB OX-400N Anti-Oxidant Compound, Charcoal Paste, 4 oz Tube [SKU: ORG6437206]

It's the ideal tool for installing electrical boxes, switches or outlets, Detects wood/metal studs or metal objects behind walls, Detects ac voltage greater than 50 V, Tests outlet wiring and GFCI function with built-in tester, Low Sulphur content, Non-reactive, no gassing in storage, Brushable over a wide temperature range, Sticks to wet joints, For aluminum to aluminum, aluminum to copper wire connections and aluminum conduit joints and copper to copper. [QTY/UOM: 1EA / 1EA]