Welcome to our store
We offer free standard shipping to every province and territory in Canada.
We offer free standard shipping to every province and territory in Canada. No minimum purchase is required, and all orders include tracking for your convenience.
You may return most new, unopened items within 30 days from delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Deliveries to Canada’s outer and remote regions may experience seasonal delays caused by severe weather or limited carrier availability. We appreciate your patience and recommend allowing additional time for your order to arrive safely.
The Oyviny 3-in-1 Trailer Plug Tester is a compact, all-in-one tool designed for practical trailer wiring checks. It combines testing capabilities for 4-pin flat, 5-pin flat, and RV 7-pin blade connectors in a single, easy-to-use device. Its design emphasizes readability and quick diagnostics, making it a reliable addition to your roadside kit or shop setup. Important compatibility note: this tester does not work with vehicles equipped with lamp-out sensors, such as certain newer GMC, Chevrolet, BMW, VW, Audi, Mercedes-Benz, and Porsche models.
Constructed from rugged ABS plastic with tin-plated copper terminals, the tester resists corrosion and provides stable conductivity. No batteries or extra wiring are required—simply plug in to test trailer circuits on trucks, boats, campers, caravans, and other towed configurations. The ergonomic design supports quick plugging and unplugging, helping you save time during roadside checks or maintenance sessions.
Note: For vehicles equipped with lamp-out sensors, this tester may not function as expected. Always verify compatibility with your specific vehicle model before testing.
Q: What does the Oyviny 3-in-1 Trailer Plug Tester test?
A: It tests 4-pin flat, 5-pin flat, and 7-pin RV trailer connectors, verifying taillights, brake lights, turn signals, reverse lights, and 12V power.
Q: Is this tester compatible with lamp-out sensor vehicles?
A: Not compatible with vehicles that have lamp-out sensors, including certain GMC, Chevrolet, BMW, VW, Audi, Mercedes, and Porsche models.
We offer free shipping on all products across Canada. Orders are typically prepared within 1–2 business days. After dispatch, delivery usually takes 3–5 business days. For remote or hard-to-reach areas, delivery may take 5–7 business days.
We may ship with Asendia, UniUni, Purolator, FedEx, or Canada Post depending on your address, package size, and the item’s handling requirements. P.O. Boxes are accepted where the selected carrier supports them.
We accept returns on most items within 30 days of delivery. Items must be returned in the condition you received them (new, unused, and with original packaging where applicable). If you receive the wrong or defective item, we’ll make it right.
To start a return, please email us at handyskook@gmail.com with your order number and a brief description of the issue. We’ll reply within 1 business day with the next steps.
Once your return is received and inspected, we’ll process your refund to the original payment method. Processing times can vary by payment provider, but most refunds are completed within 5–10 business days after approval.
When your order ships, you’ll receive a confirmation email with tracking details (when available). If you need help locating your tracking information, contact us at handyskook@gmail.com.
Thanks for subscribing!
This email has been registered!