Will this tester work reliably on new circuits with afci, gfi or combo breakers? I dont see anything from Klein saying it wont but some had problems

Mine turned red when held up to any of the AFCI breakers in my box, regardless of which socket I had the transmitter plugged into.

Wil this tool find other recepticals on the circuit?

It will find everything on the circuit BUT you will have to plug the transmitter into each outlet or using the socket adapter included with the accessories kit into a light socket of a lamp. It's really pretty easy process though and I didn't do what I just described in the previous sentence. Once I found the breaker from the outlet I had plugged the transmitter into, I flipped the breaker off, checked to make sure the outlet was indeed dead, then checked each outlet or light switch in the room and that told me everything on that circuit breaker. When I went to an outlet and plugged the transmitter in, and it lit up, then I knew I was on a different breaker, and then that began the process of finding the breaker for that outlet, etc. I hope this makes sense. Good luck. It really is a great product and I had no issues at all. The time consuming part was trudging up flights of stairs and to each room after turning a breaker off to make sure I got the right one. But now every outlet and switch in the house is mapped to a breaker.

Why is this exact kit available at the same store for two different prices? One is $3 more than the other for the same ET310 and accessories kit

I think stores do this in hopes someone will just pay more. Unless ther is something added, I would stick with the original item.

Will this work if the breaker is bad?

Yes, it should because the wires are still connected even if breaker is bad

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⚡ Find your circuit, fast — because downtime is so last decade!

DUAL SENSE ALERTS - Never miss a beat with clear digital signals and audible confirmations 🔊
INTEGRATED GFCI TESTING - Ensure safety with built-in GFCI outlet tester to verify wiring integrity 🔌
PINPOINT CIRCUITS IN SECONDS - Save time with precise breaker identification for outlets & fixtures ⚡
ACCESSORY ENHANCED FLEXIBILITY - Includes grounding & light socket adapters for all your circuit-finding needs 🛠️
VERSATILE VOLTAGE COMPATIBILITY - Works seamlessly on 90-120V AC circuits for home or commercial use 🔧

The KLEIN TOOLS 80016 Circuit Breaker Finder Tool Kit is a professional-grade, hand-powered 2-piece set designed for quick and accurate circuit breaker identification on 90-120V AC circuits. Featuring a digital receiver with clear visual and audible alerts, it includes a built-in GFCI outlet tester and versatile adapters for enhanced compatibility, making it an essential tool for both residential and commercial electrical troubleshooting.

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€ 125.42

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Slovakiastore

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

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Brand	Klein Tools
Power Source	Hand Powered
Style	2-Piece Kit
Color	Finder + Accessories
Item Weight	15.55 ounces
Item Dimensions LxWxH	15 x 10 x 3 inches
Manufacturer	Klein Tools
Part Number	80016
Item Weight	15.6 ounces
Product Dimensions	15 x 10 x 3 inches
Country of Origin	China
Item model number	80016
Is Discontinued By Manufacturer	No
Material	PC/PC-ABS Housing and Electric Components
Pattern	Kit
Item Package Quantity	1
Included Components	Circuit Breaker Finder Tool Kit, 2-Piece
Batteries Included?	No
Batteries Required?	No

Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411

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