Outlet Checker U.S. - Detect Grounding (Type B Wall Outlets)

This adapter is for TYPE B wall outlets which can be found in: The United States, Canada, Mexico, Costa Rica, and parts of the Caribbean.Before using your Earthing Harmony® products, you must ensure that your wall outlet and/or power strip is grounded. Step 1: Test Your Three-Prong (U.S.) Wall OutletPlug the Outlet Checker into the wall outlet or power strip that you'd like to test.  Step 2: Two Amber Lights = GroundedWhen the center and right lights are illuminated together, your outlet is properly grounded. You're ready to plug in the Safety Adapter included in your order. Other Light Combinations = Ungrounded and UnsafeTry testing other outlets if the first one isn't grounded.