Innovative Products of America Heavy Ranger MUTT Portable Trailer Light Tester - 7-Way SAE J560

Overview

The Heavy Ranger MUTT from Innovative Products of America is a compact, field-ready trailer light tester designed for professional fleets and service technicians. It focuses on testing a 7-way round pin connector (SAE J560) used on many commercial trailers, so you can confirm wiring and signal behavior on the road or at the yard.

Field readiness and durability

In real world tasks, the MUTT’s rugged housing and internal battery compartment offer resilience when you are working away from a shop. The unit is water resistant, helping protect internal electronics from rain, dust, or splash while you troubleshoot during a roadside stop or during routine maintenance on a fleet.

Key capabilities include:

• Test 7-way round pin connections to verify wiring and function
• Short circuit protection to help prevent accidental damage during testing
• Turn signal simulation and power verification LED for quick feedback on operation
• Trickle charger included to maintain readiness between uses

Design that travels with you

The MUTT combines portability with durability, making it a practical companion for mobile technicians or fleet managers. Its power features and indicators provide clear, on-screen signals that can guide checks without ambiguity, while the internal battery compartment lets you work away from a fixed power source. Battery is not included.

• Water resistant housing with an internal battery compartment (battery not included)
• Includes a trickle charger and offers protective features such as short circuit protection
• Portable design that suits on-site inspections, pre-trip checks, and field maintenance

Note that this device supports thorough testing and quick diagnostics. Results depend on proper usage and the specific trailer setup. It is intended to aid inspection workflows and maintenance routines, not to guarantee any outcome.

How to use it in the field

Connect the tester to the trailer 7-way pin, observe the LED indicators for power and signals, and run through turn signals, brakes, and running lights. The device provides quick visual cues to guide checks in busy yards or during roadside stops.