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

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

60093

Product ID: 282851949

Details

Brand
KLEIN TOOLS
Color
Finder +
Item Weight
15.52 ounces
Power Source
Battery
Style
2-Piece Kit

⚡Accurate circuit ID 90-120V

🔊Clear audible & visual signals

🛠️Includes GFCI outlet tester

€ 165.64

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Spain.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

⚡ Master your electrical domain with precision and confidence!

DUAL MODE TESTING POWERHOUSE - Combine circuit finding and GFCI outlet testing in one sleek, professional-grade kit.
PINPOINT CIRCUITS IN SECONDS - Save hours with precise breaker detection—no more guesswork or trial-and-error.
VERSATILE VOLTAGE COMPATIBILITY - Works seamlessly on 90-120V AC circuits for both residential and commercial projects.
EFFORTLESS AUDIBLE VISUAL ALERTS - Instant feedback with clear digital signals ensures you never miss the right breaker.
BUILT TO LAST TRUSTED FOR GENERATIONS - Crafted by Klein Tools with 160+ years of American-made durability and precision.

The Klein Tools 80016 Circuit Breaker Finder Tool Kit is a professional 2-piece set designed to quickly and accurately identify circuit breakers for outlets and fixtures on 90-120V AC circuits. Featuring clear digital and audible indicators plus a built-in GFCI outlet tester, this durable, American-made kit streamlines electrical troubleshooting for both residential and commercial use.

Specifications

ASIN	B08VWCSG7G
Best Sellers Rank	#1,197 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Circuit Testers
Brand Name	KLEIN TOOLS
Color	Finder + Accessories
Compatible Devices	Standard electrical outlets, fixtures, and circuit panels
Customer Reviews	4.7 4.7 out of 5 stars (11,640)
Global Trade Identification Number	00092644800160
Included Components	Circuit Breaker Finder Tool Kit, 2-Piece
Item Dimensions	15 x 10 x 3 inches
Item Highlight	GFCI Outlet Tester, 2-Piece Set, Includes Klein Tools Cat. No. ET310 and Cat. No. 69411
Item Type Name	Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
Item Weight	15.52 ounces
Manufacturer	Klein Tools
Maximum Operating Voltage	120 volts_of_alternating_current
Measurement Type	Ohmmeter
Minimum Operating Voltage	90 volts
Model	80016
Number of Items	1
Part Number	80016
Power Source	Battery Powered
Specification Met	UL
Style Name	2-Piece Kit
UPC	092644800160
Unit Count	1 Count
Upper Temperature Rating	60 °C

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.