If you use a grounding mat, grounding bed mat, grounding sheet, or another indoor grounding product, it is important to check that your setup is connected correctly.
There are two things you need to check:
- Whether the electrical outlet you are using is properly grounded.
- Whether your grounding product and cord have a working conductive connection.
These require two different tools: the Grounding Socket Tester and the Grounding Conductive Tester. Each performs a different test, so using both gives you a more complete picture of whether your grounding setup is working as intended.
The Two Essential Grounding Tests
1. Test Your Outlet With a Grounding Socket Tester
The Grounding Socket Tester plugs directly into your wall outlet and checks whether the outlet is correctly wired and has a functioning ground connection.
Simply plug the tester into the outlet you plan to use and compare the indicator lights with the instructions provided with the tester.
If the tester indicates that the outlet is correctly wired and grounded, you can move on to testing your grounding product.
If it shows an open ground or another wiring problem, try another outlet that has been properly tested. If you are unsure about your home's electrical wiring, contact a qualified electrician.
2. Test Your Product With a Grounding Conductive Tester
The Grounding Conductive Tester helps you check whether your grounding product and grounding cord have a continuous conductive connection.
Connect your grounding product as usual, then use the Grounding Conductive Tester according to its instructions. When the tester gives the expected green-light result, it indicates that the conductive connection through the grounding product and cord is working.
This can be used with grounding mats, grounding bed mats, grounding sheets, and other conductive grounding products.
Why You Should Use Both Testers
A common mistake is using only the Grounding Conductive Tester and assuming that a green light confirms the entire setup.
The two testers check different things.
The Grounding Conductive Tester checks the conductive path through your grounding product and its connections. It does not replace testing the wall outlet itself.
The Grounding Socket Tester checks whether the electrical outlet has the expected ground connection.
For the most complete check, test the outlet first and then test your grounding product.
How to Test Your Grounding Setup Step by Step
Step 1: Check the Wall Outlet
Plug the Grounding Socket Tester into the outlet you intend to use.
Confirm that the indicator lights show the expected result for a correctly grounded outlet.
Step 2: Connect Your Grounding Product
Connect your grounding mat, grounding bed mat, grounding sheet, or other product according to the product instructions.
Check that the grounding cord and all connectors are firmly attached.
Step 3: Use the Grounding Conductive Tester
Use the Grounding Conductive Tester to check the conductive connection through your grounding product.
If you receive the expected green-light result and the outlet has already passed the socket test, your setup is connected as intended.
Why Your Grounding Bed Mat May Not Test Through Your Sheets
One common question we receive concerns grounding bed mats used underneath bed sheets.
You may place your hand on the sheet above the grounding bed mat and notice that the Grounding Conductive Tester does not immediately show a green light. This does not necessarily mean that the bed mat is not working.
Dry fabric can reduce conductivity between your body and the grounding bed mat.
Moisture Can Improve Conductivity
During sleep, natural moisture from your skin can help improve conductivity through your bed sheets.
Because of this, testing briefly with a completely dry hand and dry sheet may give a different result than the contact you have with the mat while sleeping.
Try This Simple Test
If you want to test your grounding bed mat through your sheet:
- Make sure the bed mat and grounding cord are connected correctly.
- Place the sheet over the grounding bed mat.
- Add a few drops of water to a small area of the sheet.
- Place your hand on the slightly damp area.
- Test again with your Grounding Conductive Tester.
If the tester now gives the expected green-light result, the dry sheet was likely reducing conductivity during the first test.
You can also test the grounding bed mat directly, without the sheet between your hand and the mat, to confirm that the mat itself is conductive.
What to Do if Your Grounding Conductive Tester Does Not Turn Green
If you are not getting the expected result, check your setup one step at a time.
Check the Outlet
Start with the Grounding Socket Tester. If the outlet does not show the expected grounded result, try another properly grounded outlet.
Check All Connections
Make sure the grounding cord is securely connected to both the grounding product and the grounding plug.
Test the Product Directly
Remove sheets, clothing, or other materials between your hand and the grounding product and test the conductive surface directly.
If you get a green light with direct contact but not through another material, that material may be reducing conductivity.
Check the Cord and Product
Inspect the grounding cord, connectors, and product for visible damage or loose connections.
Follow the Tester Instructions
Testing methods and indicator lights can vary, so always follow the instructions supplied with your Grounding Conductive Tester and Grounding Socket Tester.
If you are uncertain about the wiring or grounding of an electrical outlet, have it checked by a qualified electrician.
Make Sure Your Grounding Setup Is Connected Correctly
Testing your grounding setup is a simple way to confirm that the different parts of your setup are connected as intended.
Start by using the Grounding Socket Tester to check the outlet. Then use the Grounding Conductive Tester to check your grounding product and grounding cord.
If you are testing a grounding bed mat through a sheet, remember that dry fabric can reduce conductivity during a quick test. Testing the mat directly or slightly moistening the contact area can help you identify whether the sheet is affecting the result.
If you need the right tools for testing your setup, you can explore our Grounding Socket Tester and Grounding Conductive Tester, or contact us if you need help troubleshooting your Grounding Essentials product.
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