Super Ranger MUTT®
Mobile Universal Trailer Tester

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Super Ranger MUTT®
Mobile Universal Trailer Tester

  • 4300A-L4_Product_Open_w_Accessories
  • 4300A-L4_Faceplate_ABS_Faults
  • 4300_4K_Left_Facing_Open
  • 4300A-L4_Product_5
  • 4300A-L4_Product_6
  • 4300_4K_Frontshot
  • 4300_4K_Backshot
  • 4300_4K_Top_Down
  • 4300A-L4_Product_2
  • 4300_4K_Left_Facing_Closed
  • 4300_4K_Sideview
  • 4300A-L4_Product_Dimensions

Super Ranger MUTT®
Mobile Universal Trailer Tester

Ultra-Portable, Battery-Powered, Advanced Diagnostic Trailer ABS and Trailer Light Tester

Find A Distributor
For International Customers
Distributor Information

To locate a distributor near you, please call 888-786-7899 or email us here.

International Sales

To place an order from outside of the United States, please call 888-786-7899 or email us here

Price $2,395.00
3 Year Warranty

Available For Preorder

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Ultra-Portable, Battery-Powered, Advanced Diagnostic Trailer ABS and Light Tester

Integrate one-man trailer testing with this easy-to-use, remote-controlled trailer tester with advanced ABS and trailer light diagnostics. It includes an internal lithium battery, is microprocessor controlled, and features state-of-the-art current sensing, computer-controlled circuit protection, live circuit monitoring with automatic pass/fail calculations, as well as digital voltage and amperage draw readout.

Features and Benefits:


  • Reads and clears codes on LCD screen
  • Accesses ECU data: manufacturer, make, model, etc.
  • Displays diagnostic troubleshooting information
  • Automatically detects corroded ABS wires and faulty ECU’s with patent-pending technology


  • Automatic cross, open, overload, short and ground fault detection
  • Highly accurate digital ammeter with 1mA resolution
  • Chase down short circuits with Pulsar® mode
  • Ground failure detection: differentiates between wire and chassis ground
  • Control lights by remote manually


Integrated Lithium Battery • 12-Button Remote Control • 8-ft. 7-Way Round Pin Diagnostic Cable • 500mA Battery Charger

Connection Type: 7-Way Round Pin Connection Type
Power Input: 12V DC
Source Output: 10A @ 12V DC
Ammeter: 5mA-21A
Resolution: 1mA
LCD Screen: Dual-Line 32 Character, All-Weather Digital
Enclosure Material: ABS Plastic
Enclosure Dimensions: 17" W x 11" H x 9" D
Storage Compartment: 7" W x 9" H x 3" D
Built-In Battery: Lithium Iron Phosphate (LiFeP04)
Weight: 11.3 lbs.
Warranty: 3-Year Limited Warranty

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