








🔌 Stay grounded, stay ahead — test your connection with confidence!
The cellhelmet Adapter TT500 is a compact, battery-powered grounding continuity tester designed to verify if your grounding products are properly connected to earth ground. Featuring a 15-foot grounding cord and high precision measurement at 0.01 Ohms, it provides quick, reliable green-light confirmation of grounding continuity. Ready to use out-of-the-box with an included lithium CR2 battery, this tool is essential for anyone serious about health benefits from grounding or ensuring electrical safety in their environment.






| ASIN | B096WG32VB |
| Batteries | 1 CR2 batteries required. (included) |
| Batteries Required? | No |
| Batteries included? | Yes |
| Battery Cell Type | Lithium |
| Best Sellers Rank | 429,114 in DIY & Tools ( See Top 100 in DIY & Tools ) 328 in Network Testers |
| Colour | Green |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,423) |
| Date First Available | 8 Jun. 2021 |
| Included components | Grounding Cord |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Item model number | HCT-001 |
| Manufacturer | Hooga |
| Measurement Accuracy | .01 Ohms |
| Part number | hooga_continuity_tester |
| Power source type | Battery Powered |
| Product Dimensions | 12.7 x 8.89 x 2.54 cm; 453.59 g |
| Style | Compact |
E**A
A very useful piece of kit
Works as it’s supposed to. I have used it to check which of my grounding devices actually work, which is most of them apart from one. I have also use it to find which floor surfaces in my home are grounded. So I now know that I can stand on the kitchen floor or the slate fireplace hearth and will be grounded. And just for fun, I have taken it out and about with me to confirm that I am grounded when standing in the garden barefoot, or when wearing boots but touching a tree or any other living plant or grounded person. Also any metal object embedded into the ground, such as a lamppost. Confirmed that concrete is also grounded, but not asphalt. A very useful piece of kit.
P**L
Excellent Item *****
Excellent Item *****
E**N
The product arrived on time and it's as described and works as intended. Highly recommended.
G**Z
Cumple lo prometido si detecta si hay tierra
I**M
Very nice and confirms that the grounding Matt is working..
M**A
It actually works! Easy to use and good value for the price.
L**R
Funciona tal como debería cuando lo uso para probar mis tapetes de conexión a tierra en casa.
Trustpilot
2 weeks ago
3 days ago