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Illustration for Klein Tools ET310 Digital Circuit Breaker FinderKlein Tools
Panel tracing

Klein Tools ET310 Digital Circuit Breaker Finder

A transmitter/receiver kit that reduces trial-and-error when mapping circuits in apartments and common areas.

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MidrangeExact price and availability are shown by the retailer.

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Best fit

Who this tool is for

Identifying which breaker serves a receptacle before maintenance or troubleshooting.

Before you buy

Know the limitation

Use only within the tool’s ratings and follow electrical safety procedures. Breaker identification does not make a circuit safe to work on.

Useful features

Why it made the launch catalog

✓ Transmitter + receiver
✓ Breaker tracing
✓ Integrated GFCI test

We do not claim independent laboratory testing of every product. Launch selections are based on manufacturer-published specifications, practical fit for common building use cases and category coverage. Always verify current specifications with the manufacturer or retailer.

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