Tech box V2

Quickly diagnose trailer wiring issues before hitting the road!
Trailer Light Tester Box is a compact, durable solution designed for mechanics, rental locations, and DIY haulers. Just plug into a trailer's 7-way or 4/5-pin connector to instantly check brake lights, turn signals, and running lights.

Works with M18 Milwaukee power tool batteries  

Features:

• Easy plug-and-test functionality
• Powered by a 12V - 24V Milwaukee power tool lithium battery
• Switches include Power, Trailer lights, Left Signal and Right signal
• Works with standard 7-way and 4-pin trailer plugs
  
• External grounding pin 
• LED switch indicators 
• LED Volt Meter to monitor Battery voltage
• LED Amp Meter to analyze electrical harness and circuit integrity  
• Rugged, weather-resistant casing
  

Perfect for:

• Rental yards

• Fleet managers

• Mechanics

• RV and trailer owners

• Safety inspectors 

**BATTERY NOT INCLUDED**