Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
frontpagetunabreath posted Jan 26, 2026 09:18 PM
  1. Deal Image
Item 1 of 2
  1. Deal Image
  2. Deal Image
Item 1 of 2
frontpagetunabreath posted Jan 26, 2026 09:18 PM

Fluke BK120 SmartTrace Breaker Finder & Socket Tester

+ Free Shipping

$59

$80

26% off
Amazon
64 Comments 39,145 Views
Get Deal at Amazon
Good Deal
Save
Share
Deal Details
Update: This popular deal is still available.

Amazon has Fluke BK120 SmartTrace Breaker Finder & Socket Tester for $59. Shipping is free.

Home Depot also has Fluke BK120 SmartTrace Breaker Finder & Socket Tester for $59. Shipping is free. Otherwise, select ship to store pick up where available.

Thanks to Community Member tunabreath for finding this deal.

Product Description:
  • Stop the guesswork, ensure safety, and save time with the BK120 - your one-stop shop for effortless circuit identification and voltage detection. The BK120 is a versatile tool designed for electricians, homeowners, and maintenance professionals. This user-friendly system streamlines electrical work, circuit tracing, and troubleshooting, making it an essential addition to any toolbox.
  • Locate the correct breaker quickly and accurately
  • Built-in GFCI Tester
  • Low battery indicator
  • Conserve battery life with auto sleep mode
  • Illuminate your workspace for clear visibility in low-light environments
  • CAT III 150 V safety rated

Editor's Notes

Written by megakimcheelove | Staff
  • About this Deal:
    • Our research indicates that this is $18.79 lower (24.2% savings) than the next best available price from a reputable merchant with prices starting from $77.79 at the time of this post.
    • While supplies / offer lasts.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Product:
    • The Fluke BK120 has a 4.6 out of 5 star overall rating on Amazon based on 400 reviews.
  • About this Store:

Original Post

Written by tunabreath
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available.

Amazon has Fluke BK120 SmartTrace Breaker Finder & Socket Tester for $59. Shipping is free.

Home Depot also has Fluke BK120 SmartTrace Breaker Finder & Socket Tester for $59. Shipping is free. Otherwise, select ship to store pick up where available.

Thanks to Community Member tunabreath for finding this deal.

Product Description:
  • Stop the guesswork, ensure safety, and save time with the BK120 - your one-stop shop for effortless circuit identification and voltage detection. The BK120 is a versatile tool designed for electricians, homeowners, and maintenance professionals. This user-friendly system streamlines electrical work, circuit tracing, and troubleshooting, making it an essential addition to any toolbox.
  • Locate the correct breaker quickly and accurately
  • Built-in GFCI Tester
  • Low battery indicator
  • Conserve battery life with auto sleep mode
  • Illuminate your workspace for clear visibility in low-light environments
  • CAT III 150 V safety rated

Editor's Notes

Written by megakimcheelove | Staff
  • About this Deal:
    • Our research indicates that this is $18.79 lower (24.2% savings) than the next best available price from a reputable merchant with prices starting from $77.79 at the time of this post.
    • While supplies / offer lasts.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Product:
    • The Fluke BK120 has a 4.6 out of 5 star overall rating on Amazon based on 400 reviews.
  • About this Store:

Original Post

Written by tunabreath

Community Voting

Deal Score
+196
Good Deal
Get Deal at Amazon

Price Intelligence

Model: BK120 Smart Trace Breaker Finder

Deal History 

Sale Price
Slickdeal
  • $NaN
  • Today

Current Prices

Sort: Lowest to Highest | Last Updated 3/4/2026, 08:25 PM
Sold By Sale Price
Ace Hardware$79.99
Amazon$86.06

Leave a Comment

Unregistered (You)

Top Comments

Ekeenan86
790 Posts
64 Reputation
Very mixed reviews on this, may depend on the panel type or how it's wired. Going with Home Depot on this deal as the return policy is much better than Amazon.
FuschiaCaribou204
116 Posts
18 Reputation
i have the klein one for about this price range. is this one much better? With the klein i've had issues not being able to find the breaker. it would just ring at multiple breakers.

64 Comments

Sign up for a Slickdeals account to remove this ad.

Jan 28, 2026 04:21 PM
11,112 Posts
Joined Dec 2008
steppedinitJan 28, 2026 04:21 PM
11,112 Posts
Quote from eeagle :
So how would you use this to change out a dimmer switch?
You have to do it the old fashioned way. Turn the light on, then have someone else flip the breakers until you find the right one.

I have the same issue with an outdoors light I want to replace.
Jan 28, 2026 04:51 PM
2,567 Posts
Joined May 2007
eeagleJan 28, 2026 04:51 PM
2,567 Posts
Quote from steppedinit :
You have to do it the old fashioned way. Turn the light on, then have someone else flip the breakers until you find the right one.

I have the same issue with an outdoors light I want to replace.
Thanks, but that is the reason I need to change out the switch, the light not longer comes on, so guess I need to check for voltage at the switch and see which breaker stops the power. I was hoping there was an easier way to find the breaker w/o all the breaker flipping. Oh and to make matters harder it is a 3 way switch.
Pro
Jan 28, 2026 05:26 PM
3,061 Posts
Joined Sep 2011
E4300
Pro
Jan 28, 2026 05:26 PM
3,061 Posts
Quote from Ekeenan86 :
Very mixed reviews on this, may depend on the panel type or how it's wired. Going with Home Depot on this deal as the return policy is much better than Amazon.
This technology is not 100% reliable. Idiot proof/dirt cheap option is to energize only one breaker at a time (do not connect more than one black wire to each breaker) and check for 120 VAC using cheap/free Harbor Freight multimeter at the outlet(s) inside the home. Label the outlets controlled by this breaker.

I've seen homes with two or more black wires connected to one breaker. Sometimes, a single breaker can control different AC outlets in different rooms.
Pro
Jan 28, 2026 05:35 PM
3,061 Posts
Joined Sep 2011
E4300
Pro
Jan 28, 2026 05:35 PM
3,061 Posts
Quote from 1-6 :
Great for figuring out who's stealing your power.
Easiest way is to switch off all the AC breakers going into your house and watch the power meter. If the meter is rotating or shows more than 0.1 watts, then someone is pulling power somewhere between the power meter and your AC breaker box.

In theory the power that you use should be controlled by a breaker located in the breaker box.
1
Jan 29, 2026 03:23 PM
48 Posts
Joined Oct 2007
monockJan 29, 2026 03:23 PM
48 Posts
Fluke tool at a decent price
Jan 29, 2026 10:30 PM
111 Posts
Joined Mar 2021
BraveFog2937Jan 29, 2026 10:30 PM
111 Posts
Wow, I didn't know this was a thing. Too bad it's 50/50 on this thing actually working from the comments and reviews. Meh, never knew I had a problem before knowing about this product so... I'm good.
1
1
Jan 30, 2026 02:15 AM
505 Posts
Joined Aug 2008
jonlee107Jan 30, 2026 02:15 AM
505 Posts
Quote from BraveFog2937 :
Wow, I didn't know this was a thing. Too bad it's 50/50 on this thing actually working from the comments and reviews. Meh, never knew I had a problem before knowing about this product so... I'm good.
Thanks for reading the comments and reviews

Sign up for a Slickdeals account to remove this ad.

Feb 01, 2026 07:31 PM
129 Posts
Joined Nov 2020
FairSoda312Feb 01, 2026 07:31 PM
129 Posts
make testing and documenting circuits easier
Feb 03, 2026 05:54 PM
101 Posts
Joined Nov 2016
doubleedgedpenFeb 03, 2026 05:54 PM
101 Posts
Quote from eeagle :

Thanks, but that is the reason I need to change out the switch, the light not longer comes on, so guess I need to check for voltage at the switch and see which breaker stops the power. I was hoping there was an easier way to find the breaker w/o all the breaker flipping. Oh and to make matters harder it is a 3 way switch.
They make "Breaker Finder Accessory Kit" sets, which let you attach the transmitter to the wires with alligator clips.
Pro
Deal Editor
Feb 03, 2026 09:44 PM
15,462 Posts
Joined May 2008
powerfuldopplerFeb 03, 2026 09:44 PM
Pro
Deal Editor
15,462 Posts
Update: This popular deal is still available.
1
Feb 03, 2026 10:07 PM
843 Posts
Joined Mar 2011
MeAmSupermanFeb 03, 2026 10:07 PM
843 Posts
I just got the AstroAI version for $40 which I haven't opened up yet. Shame that Klein and Fluke don't include accessories like bulb socket adapter, 3-to-2 plug and alligator clips. I've had a fluke cable toner before and although it worked well, so did some of the other brands I tried. Let's see how AstroAI plays out.
Feb 03, 2026 11:09 PM
3,000 Posts
Joined Nov 2010
smarttFeb 03, 2026 11:09 PM
3,000 Posts
Quote from 1-6 :
Great for figuring out who's stealing your power.
How do people steal power? Are you in some kind of shared housing? Also, how would you figure out who is stealing? If you can't figure that out, then you have no idea where to put the transmitter.
Last edited by smartt February 3, 2026 at 04:17 PM.
1
Feb 03, 2026 11:12 PM
3,000 Posts
Joined Nov 2010
smarttFeb 03, 2026 11:12 PM
3,000 Posts
Quote from MeAmSuperman :
I just got the AstroAI version for $40 which I haven't opened up yet. Shame that Klein and Fluke don't include accessories like bulb socket adapter, 3-to-2 plug and alligator clips. I've had a fluke cable toner before and although it worked well, so did some of the other brands I tried. Let's see how AstroAI plays out.
I'd be curious how well it worked because that model on Amazon has all the accessories you mentioned. Suppose if the Fluke worked well, a power adapter to a light socket, can't be too much.

Edit: Actually only $3 for outlet adapter at HD: https://www.homedepot.com/pep/Lev.../100357036
Last edited by smartt February 3, 2026 at 04:16 PM.
Feb 03, 2026 11:57 PM
4,856 Posts
Joined Jun 2008
AndrewinMDFeb 03, 2026 11:57 PM
4,856 Posts
Amazon reviews are more favorable than the HD ones overall. I have such weird wiring in this place -- receptacles on the 3rd floor connected to ones in the basement -- that I'm giving it a shot. Any time I need to find a circuit breaker for an outlet, it takes 4-6 breakers before I find the correct one, and I've tried to label them over the last 6 years. Hopefully this can save me some time as I need to swap out 4 outlets that escaped the "great upgrade" a few years ago.
Ordered through AAFES and got it for $53.10 shipped. Even better.
Last edited by AndrewinMD February 3, 2026 at 05:02 PM.

Sign up for a Slickdeals account to remove this ad.

Feb 04, 2026 12:20 AM
1,621 Posts
Joined Nov 2006
sidewinder33625Feb 04, 2026 12:20 AM
1,621 Posts
how often do you check breakers to need something like this?

Leave a Comment

Unregistered (You)

Related Searches

Free ShippingHome & Home ImprovementToolsBuilding & Remodeling SuppliesFlukeAmazonHome Depot

Popular Deals

See All
Found by minntwins
Yesterday 04:06 PM
Forum Thread
DSG Men's Classic Fleece Hoodie (Soft Aqua or Neon Bolt) $8.97 & More + Free Shipping on $49+$8.97$45
80% off
0
Found by minntwins
Yesterday 03:46 PM
Forum Thread
DSG Men's Agility Cinch Pant (Brown Caramel, Size XS-3XL) $9.87 + Free Shipping on $49+$9.87$45
78% off
2
Found by TattyBear
Yesterday 07:32 PM
Forum Thread
Greater Goods Cold Press Juicer $29.99 + Free Shipping$30$130
76% off
2
Found by BBQchicken
Yesterday 06:14 AM
Forum Thread
Turtle Beach Afterglow Wave Wired Controller for Xbox (Grey) $32.28 + Free Shipping w/ Prime or on orders over $35$32$50
36% off
1
Found by tDames
Yesterday 05:21 PM
Forum Thread
360mm NZXT Kraken Core 360 RGB AIO CPU Liquid Cooler (Black) $89.99 + Free Shipping$90$130
30% off
0

Trending Deals

See All
Found by Jordanelio
Yesterday 08:45 PM
Forum Thread
Starlink @ $39/month for 6 months$39$50
22% off
4
Found by babgaly
Yesterday 11:33 PM
Forum Thread
BIIB 6-in-1 Multitool Pen (Black or Yellow) $4.99 + Free Shipping w/ Prime or on $35+$4.99$9.99
50% off
1
Found by hawkblu09
Yesterday 07:07 PM
Forum Thread
Patagonia Men's Better Sweater 1/4-Zip Fleece Jacket (2 colors) $82.99 + Free Shipping$83$139
40% off
1
Found by neomatrixviper
Yesterday 11:16 PM
Forum Thread
DJI Mini 5 Pro 1-Inch Large CMOS Camera Nightscape Omnidirectional Obstacle Sensing $660.14 with code MIA70B Aliexpress.com$660
4
Found by DKTVPN
Yesterday 10:15 PM
Forum Thread
YMMV At Home Depot: $6:20 Milwaukee 10 in. Torque Lock Curved Jaw Locking Pliers with Durable Grip.$6.20$18
65% off
0