The Klein Tools ET450AU Advanced Circuit Tracer Kit is a professional-grade tool designed to safely trace energized and de-energized wires, breakers, fuses, and circuits, even when hidden behind walls, ceilings, concrete, or underground. With its wide voltage range, adjustable sensitivity, and a complete set of accessories, the ET450AU makes circuit mapping, fault detection, and wire tracing faster and more accurate for electricians and technicians.

Key Features:

• Traces Energized & De-Energized Circuits: Accurately trace wires, breakers, fuses, and conduits carrying up to 480V AC/DC, making it suitable for a wide variety of applications.
• Multiple Tracing Modes:
  • Identify and trace wires:
  • Behind drywall or ceilings
  • Under flooring or concrete
  • Through PVC conduit
  • Underground and in junction boxes
• Advanced Receiver Functionality:
  • 8 adjustable sensitivity levels
  • Backlit LCD display with bar graph and numeric signal strength (0–99)
  • Audible alerts and NCV (non-contact voltage) detection
  • Built-in flashlight for low-light environments
  • Kickstand for hands-free operation
• Simple One-Button Transmitter:
  • Clearly indicates AC/DC and voltage presence (12V–480V)
  • Durable design with easy-access terminals for leads
• Complete Accessory Kit: Comes with everything needed for testing a variety of outlets, wires, and breaker panels.

Kit Includes:

• ET450T Transmitter
• ET450R Receiver
• 3 ft (0.9 m) and 20 ft (6 m) Lead Adapters (connectable end-to-end for extra length)
• AC Plug to Banana Jacks
• Alligator Clips
• Outlet Tabs
• Ground Prong Adapter
• 10 × AA Alkaline Batteries
• Hard Carrying Case with Handle

Specifications:

• Model: ET450AU
• Voltage Range: 12V to 480V AC/DC
• Sensitivity Settings: 8 levels (adjustable)
• Display: LCD with backlight + bar graph + numeric indicator
• NCV Functionality: Yes (non-contact voltage detection)
• Flashlight: Integrated in receiver
• Power Supply: 10 × AA batteries (included)
• Carry Case: Yes, durable and compartmentalised

Applications:

• Electricians & Contractors: Accurately identify breakers and map circuits in commercial and residential settings.
• Maintenance Technicians: Trace and troubleshoot wiring issues in facilities, hospitals, schools, and more.
• Renovation & Retrofit Work: Safely locate existing wiring behind walls, floors, and ceilings.
• Underground & In-Wall Conduit Detection: Ideal for tracing wires in PVC or buried conduit.

The Klein Tools ET450AU Advanced Circuit Tracer Kit is a powerful, easy-to-use diagnostic tool that simplifies wire tracing, circuit mapping, and electrical fault detection. Designed with professional features and field-ready durability, it’s the ultimate choice for any technician needing safe and accurate tracing—even through tough-to-reach spaces.