STEP 1:
Insert the socket checker into the socket or power strip you wish to test.

STEP 2: Two green lights = grounded
If the middle and left lights are lit together, your outlet is properly grounded.

Other combinations of lights = ungrounded and unsafe

Try testing other outlets if the first one is not grounded. If you do not have grounded outlets in your home, you will need to order a grounding rod to use your grounding product, or call an electrician to repair your outlets.

Please note: If your outlets only have two pins, then there is no earth/ground present. In that case, you must use an earth rod or have an electrician come and earth your outlets.