Klein Tools
1 / 4 · Product viewKlein ToolsOriginal
ET450 kit with hard case
We may earn a commission. How we earn.
Find on AmazonModel: ET450
Transmitter, receiver, prongs, clips, lead adapters, batteries and hard carrying case.
Important limit: A large, 6-plus-pound kit; overkill for someone who only wants to identify outlet breakers
Confirm condition, quantity and included accessories on the retailer’s listing.
Compare versions and packagesSpecifications checked November 5, 2026. Full product details
Transmitter, receiver, blade and ground prongs, alligator clips, 3 ft and 20 ft lead adapters, AC plug leads, instructions, all required batteries, and hard carrying case with handle
Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit with Case
A professional circuit tracer kit for energized and non-energized breakers, fuses and wires, with a backlit-LCD receiver, sensitivity adjustment and a hard case of prongs, clips and lead adapters.
Selected package: ET450 kit with hard case.
Transmitter, receiver, prongs, clips, lead adapters, batteries and hard carrying case.
These are different products. Check their specifications separately.
Simpler outlet-to-breaker finder for 120V indoor systems; no wire tracing through walls.
Purchase links appear where the exact offer is verified. Confirm the named model, quantity and accessories before ordering.
| Type | Circuit tracer |
|---|---|
| Application | Traces energized and non-energized breakers, fuses and wires |
| Voltage | External indicators for 12V, 48V, 120V, 240V and 480V |
| Frequency | Transmitter AC 45 to 65 Hz; receiver 33 kHz |
| Receiver display | LCD with backlight |
| Receiver functions | Flashlight and non-contact voltage (NCV) function on the receiver |
| Receiver sensitivity | Easily adjusted; detects the transmitted signal on breakers, fuses and wire through drywall, cement block and underground |
| Drop protection | 6 ft (2 m) |
| Battery life | Up to 24 hr |
| Batteries | Transmitter 6 x 1.5V AA alkaline; receiver 4 x 1.5V AA alkaline (all included) |
| Leads | Interchangeable; 20 ft (6.1 m) lead length; 3 ft and 20 ft lead adapters plus AC plug leads |
| Ingress protection | IP42 |
| Safety rating | CAT III 600V |
| Included | Transmitter, receiver, blade and ground prongs, alligator clips, 3 ft and 20 ft lead adapters, AC plug leads, instructions, all required batteries, and hard carrying case with handle |
| Size | 16.12 x 12.75 x 4 in (40.9 x 32.4 x 10.2 cm) |
| Weight | 100.5 oz (2,849 g) |
From manufacturer documentation, checked November 5, 2026. Spotted an error? Tell us.
A pen-style non-contact AC voltage detector that senses 90 to 1000 V AC, glows red and beeps near live conductors, runs a continuous self-test and is rated CAT IV 1000V.
Check package and model options
An Advanced Pro wire tracer kit for locating energized and de-energized wires, identifying breakers and tracing conductors through walls and conduit.
A pen-style non-contact AC voltage detector with two sensitivity modes (12 to 1000 V AC and 70 to 1000 V AC), a built-in flashlight and a CAT IV 1000V rating.
Check package and model options
