No Tools, No Guesswork , Instant Light Check!

“I was surprised how well this worked. I have a GMC pickup and most readers would show at the bottom rather than the top. This one twists so you can turn it so the readings face up. Works very well.” -  Dave M.

Why Get Our 360 Rotatable 7 Way Blade & 4 Pin Trailer Light Wire Circuit Tester?

✅Instant Trailer Light Diagnosis: Many drivers only discover faulty trailer lights after hitting the road. The 360 Rotatable 7 Way Blade & 4 Pin Trailer Light Wire Circuit Tester eliminates the guesswork by instantly showing the working status of brake, turn, and tail circuits using six bright LED indicators. You’ll know in seconds whether your trailer is safe to tow. 

✅Dual Compatibility for All Vehicles: Forget switching between multiple testers. This 2-in-1 diagnostic tool works with both 4-Pin Flat and 7-Way RV connectors, making it compatible with most trucks, SUVs, and RVs including popular models like the Ford F150, RAM 2500, and Chevy Silverado. 

✅Durable, Rotatable, and Road-Ready: Designed with a 360° swivel head to adapt to any socket position, it prevents cable strain and fits easily in tight spaces. The IP67 waterproof ABS housing and brass terminals withstand rain, dirt, and vibration, ideal for roadside use and long-haul drivers. 

📓FREQUENTLY ASKED QUESTIONS

Q: How is this better than single-type testers?

A: Unlike single-pin testers, 360 Rotatable 7 Way Blade & 4 Pin Trailer Light Wire Circuit Tester covers two plug types (4 and 7 pin), rotates 360° for easier access, and gives faster, clearer LED diagnostics in real time.

Q: Do I need tools or extra power to use it?

A: No tools or batteries required. Just plug it into your vehicle’s trailer socket, and the LED lights will instantly show circuit status.

⚙️ Specifications:

• Color: Black

• Item Weight: 0.40 lbs

• Material:  IP67 Waterproof ABS 

• Compatibility:  Most trucks, SUVs, and RVs including Ford F150, RAM 2500, Chevy Silverado..

• Product Dimensions: 1.5 x 4 x 6 inches

• Package Inclusion:  1 x 360 Rotatable 7 Way Blade & 4 Pin Trailer Light Wire Circuit Tester