Has anyone used this outdoors to see if their concrete or brick paver patio is grounded? I realize it requires an outside outlet. Anyone tried?

The tester can be used outside where no outlet is available--using the actual earth/the ground under your feet/soil/dirt. I do not know why this is not mentioned in the instructions. Think about it like this....where does your electrical outlet get its "ground" in the first place? Somewhere along your electrical box is grounded into the earth somewhere. Dirt works just fine without using the grounded hole in your outlet. (Remember to test your electrical outlet for proper grounding first.) Again, no electrical outlet outside-no problem, as long as you can reach some soil/dirt/ground somewhere. Just stick (or plug) the end that would normally go into the grounded hole of the electrical outlet into the dirt/soil/earth-it will be grounded. I found that my sidewalk and driveway are only grounded when wet but the garage floor has a good ground regardless. Both areas tested using my hand as the test subject to see if I was "grounded" while standing barefoot on each surface. I also tested my mats using the grounded outlet indoors and again with the ground end in the actual soil outside...both gave the same results. Grounded. I also added a piece of copper wire all the way around one of my sandals but not the other. Then lifted each foot to see the results. The copper wire worked to ground me, and my kid wearing tennis shoes while we held hands-as long as the shoe with the copper wire was on the ground...or in this case, standing on the grass.

why is it that when I hold the metal tip of and put the square part on my skin it says I'm grounded, no matter where I am or touching the mat or not?

If you hold the tip and also put the connector on your body you are creating a continuous circuit - therefore you are testing positive for continuity.

When i stick the grounding cord in the ground / earth, i want to keep it clean. can i wrap the end in aluminum foil before i stick it in the ground?

Yes. Metal on metal; it's okay.

What diameter is the connector pin/socket?

Thanks for your question. 4.8mm

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⚡ Ground your wellness with precision and ease!

EXTENDED 15 FOOT CORD - Universal length ensures easy reach to any grounded outlet without hassle.
BATTERY POWERED CONVENIENCE - Includes CR2 lithium battery for immediate, cordless operation—no extra purchases needed.
COMPREHENSIVE COMPATIBILITY - Works with all grounding products—mats, sheets, pads, blankets, and pillow covers.
PRECISION CONTINUITY TESTING - Accurate to 0.01 Ohms, guaranteeing reliable grounding status every time.
INSTANT GROUNDING VERIFICATION - Snap, plug, and test with a single button press for seamless safety assurance.

The Hooga Grounding Continuity Tester is a professional-grade tool designed to verify the effectiveness of grounding products. Featuring a 15-foot universal grounding cord, a built-in CR2 lithium battery, and precision continuity testing accurate to 0.01 Ohms, it ensures your grounding mats, sheets, and accessories are properly connected to earth’s natural energy. Its intuitive one-button operation with a green LED indicator delivers instant, reliable results, empowering health-conscious professionals to maintain optimal grounding and wellness.

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Manufacturer	Hooga
Part number	hooga_continuity_tester
Item Weight	454 g
Product Dimensions	12.7 x 8.89 x 2.54 cm; 453.59 g
Batteries	1 CR2 batteries required. (included)
Color	green
Style	Conductivity Tester
Power source type	Battery Powered
Measurement Accuracy	.01 Ohms
Included Components	Grounding Cord
Batteries Included	Yes
Batteries Required?	No
Battery Cell Type	Lithium
Item Dimensions LxWxH	12.7 x 8.9 x 2.5 cm

Hooga Grounding Tester Continuous Tester Grounding Mat for Sheet Pad Blanket Pillow Cover Universal 15ft Ground Cord Used to Test the effectiveness of Grounding Connected Products

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