Complete Klein Tools ET450 circuit tracer kit with transmitter, receiver, test leads, plug adapter, batteries, and hard case for organized transport.
Klein Tools ET450 transmitter and receiver with voltage indicators and digital display showing signal strength, NCV button, and control arrows.
Back view of two Klein Tools devices with battery compartments and certification labels, designed for rugged use in electrical testing environments.
Two views of Klein Tools handheld tester showing input ports labeled “COM” and voltage symbols, and a sensor screen for electrical diagnostics.
Klein Tools ET450 transmitter and receiver shown with voltage indicators, NCV detection, flashlight, and sensitivity level display for circuit tracing
Promotional image showing Klein Tools circuit tracer used on electrical panel, wall, grass, and concrete, highlighting versatility across environments.
Person using Klein Tools digital tester on a circuit breaker panel, with screen showing “85”, “Level 3”, and “NCV” for voltage and signal strength.
Technician using Klein Tools electrical tester outdoors near an open electrical panel, with protective gear and carrying case visible on grassy surface.
Person using handheld Klein Tools device to measure a cylindrical concrete structure, with screen displaying “20 mm” for depth or thickness reading.
Complete Klein Tools ET450 circuit tracer kit with transmitter, receiver, test leads, plug adapter, batteries, and hard case for organized transport.
Klein Tools ET450 transmitter and receiver with voltage indicators and digital display showing signal strength, NCV button, and control arrows.
Back view of two Klein Tools devices with battery compartments and certification labels, designed for rugged use in electrical testing environments.
Two views of Klein Tools handheld tester showing input ports labeled “COM” and voltage symbols, and a sensor screen for electrical diagnostics.
Klein Tools ET450 transmitter and receiver shown with voltage indicators, NCV detection, flashlight, and sensitivity level display for circuit tracing
Promotional image showing Klein Tools circuit tracer used on electrical panel, wall, grass, and concrete, highlighting versatility across environments.
Person using Klein Tools digital tester on a circuit breaker panel, with screen showing “85”, “Level 3”, and “NCV” for voltage and signal strength.
Technician using Klein Tools electrical tester outdoors near an open electrical panel, with protective gear and carrying case visible on grassy surface.
Person using handheld Klein Tools device to measure a cylindrical concrete structure, with screen displaying “20 mm” for depth or thickness reading.
KLEIN TOOLS

Klein Tools Advanced Circuit Breaker Finder Wire Tracer Kit ET450 Underground Detection for Energized and Non-Energized Breakers Fuses Wires Conduit Pipes LCD Display Hard Case

Only 3 left
SKU: ET450
$299.99
Description

Pinpoint Accuracy Underground or Behind Walls – Professional Tracing for Breakers, Wires, and Fuses

The Klein Tools ET450 Advanced Circuit Tracer Kit is engineered for electricians, contractors, and maintenance professionals who need reliable signal tracing through drywall, cement block, and underground surfaces. Whether you're locating energized breakers or identifying a single wire in a bundle, the ET450 delivers precise signal detection with adjustable sensitivity and both audible and visual indicators. The receiver features a built-in flashlight and non-contact voltage (NCV) detection for added safety in low-light environments. The transmitter provides AC/DC voltage indicators

What's Included

  • (1) Transmitter
  • (1) Receiver with LCD Display and Flashlight
  • (1) Blade Prong
  • (1) Ground Prong
  • (2) Alligator Clips
  • (1) 3-Foot Lead Adapter
  • (1) 20-Foot Lead Adapter
  • (1) AC Plug Lead
  • (1) Instruction Manual
  • (10) AA Alkaline Batteries (6 for Transmitter, 4 for Receiver)
  • (1) Hard Carrying Case

Key Features

  • Advanced Signal Detection: Trace energized and non-energized breakers, fuses, wires, conduit, and pipes.
  • Adjustable Sensitivity: Fine-tune receiver response for accurate tracing through walls and underground.
  • Audible and Visual Feedback: LCD display with backlight and beeping tone indicate signal strength.
  • NCV Function: Detects live wires without direct contact for added safety.
  • Wide Voltage Range: Transmitter detects AC/DC voltages from 12V to 480V.
  • Durable Construction: Drop-tested to 6 feet and rated IP42 for jobsite reliability.
  • Long Battery Life: Up to 24 hours of operation with included AA batteries.
  • Portable and Organized: Comes with a hard case and full accessory kit for easy transport and storage.

Specifications

Type Circuit Tracer
Application Trace Breakers, Fuses, Wires (Energized/Non-Energized)
Voltage Range 12V, 48V, 120V, 240V, 480V
Frequency Transmitter: AC 45Hz–65Hz; Receiver: 33kHz
Battery Type AA Alkaline (Included)
Battery Life Up to 24 Hours
Drop Protection 6 ft (2 m)
Ingress Protection IP42
Display LCD with Backlight

Need a tool to verify voltage before tracing? Pair this kit with the Klein Tools NCVT-4IR Dual Range Non-Contact Voltage Tester—perfect for pre-checking energized circuits and adding infrared temperature readings to your workflow.