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expired Posted by cordova1014 • Apr 9, 2024
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expired Posted by cordova1014 • Apr 9, 2024

Klein Digital Multimeter Electrical Tester Set

+ Free Shipping

$46

$54

14% off
Amazon
18 Comments 43,588 Views
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Deal Details
Update: This popular deal is still available.

Amazon has Klein Digital Multimeter Electrical Tester Set (MM320KIT) on sale for $45.51. Shipping is free.

Home Depot has Klein Digital Multimeter Electrical Tester Set (MM320KIT) on sale for $45.51 (price in cart). Shipping is free

Thanks to Community Members cordova1014 & Logan_71 for finding this deal.

Includes:
  • MM320 Digital Multi-meter (Measures up to 600-Volt AC/DC voltage, 10 A DC current and 2MΩ resistance)
  • NCVT-3P Non-Contact Voltage Tester with Flashlight
  • ET45 Voltage Tester
  • RT210 GFCI Receptacle Tester
  • A padded storage pouch and all required batteries

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Our research indicates that this deal is $7.48 less (14% savings) than the next best available price from a reputable merchant with prices starting from $52.99 at the time of this posting.
  • About this product:
    • 2 year warranty
    • 4.8 out of 5 stars rating at Amazon based on over 1,780 customer reviews
  • About this store:

Original Post

Written by cordova1014
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available.

Amazon has Klein Digital Multimeter Electrical Tester Set (MM320KIT) on sale for $45.51. Shipping is free.

Home Depot has Klein Digital Multimeter Electrical Tester Set (MM320KIT) on sale for $45.51 (price in cart). Shipping is free

Thanks to Community Members cordova1014 & Logan_71 for finding this deal.

Includes:
  • MM320 Digital Multi-meter (Measures up to 600-Volt AC/DC voltage, 10 A DC current and 2MΩ resistance)
  • NCVT-3P Non-Contact Voltage Tester with Flashlight
  • ET45 Voltage Tester
  • RT210 GFCI Receptacle Tester
  • A padded storage pouch and all required batteries

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Our research indicates that this deal is $7.48 less (14% savings) than the next best available price from a reputable merchant with prices starting from $52.99 at the time of this posting.
  • About this product:
    • 2 year warranty
    • 4.8 out of 5 stars rating at Amazon based on over 1,780 customer reviews
  • About this store:

Original Post

Written by cordova1014

Community Voting

Deal Score
+51
Good Deal
Visit Amazon

Price Intelligence

Model: Klein Tools MM320KIT Digital Multimeter Electrical Test Kit, Non-Contact Voltage Tester, Receptacle Tester, Carrying Case and Batteries

Deal History 

Sale Price
Slickdeal
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  • Today

Current Prices

Sort: Lowest to Highest | Last Updated 6/30/2025, 05:21 PM
Sold By Sale Price
Lowe's$49.98
Amazon$49.98

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Top Comments

TenseHamster4473
153 Posts
38 Reputation
MM420 is basically the same meter with auto ranging and TRMS.

CL220 has a clamp and often suggested as the most meter any homeowner will ever need, you could take apart an entire HVAC system with it. I think both of those are < $60.

Uni-T meters also have great value/$ but they have so many models, hard to say which is the right buy. Ames meters at Harbor Freight are supposed to be halfway decent but unless you have a coupon, I don't see them being much cheaper than a Klein for the same features.
Logan_71
3891 Posts
2033 Reputation
Looks like AMZ has price matched.

https://www.amazon.com/Multimeter...THSM8?th=1
TenseHamster4473
153 Posts
38 Reputation
OK deal if you need all the extra bits. This multimeter is $38 normal price and non-contact voltage detector + GFCI tester aren't exactly expensive.

It's also a non-true RMS, manual ranging meter and you could probably do better for barely more money.

17 Comments

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Pro
Apr 9, 2024
3,891 Posts
Joined Jun 2016
Apr 9, 2024
Logan_71
Pro
Apr 9, 2024
3,891 Posts
Looks like AMZ has price matched.

https://www.amazon.com/Multimeter...THSM8?th=1
Pro
Apr 10, 2024
2,255 Posts
Joined Nov 2010
Apr 10, 2024
MasterRigger
Pro
Apr 10, 2024
2,255 Posts
HD also has the circuit breaker finder on sale with accessories and if you buy multiple items you get an additional discount.
Apr 10, 2024
153 Posts
Joined Oct 2020
Apr 10, 2024
TenseHamster4473
Apr 10, 2024
153 Posts
OK deal if you need all the extra bits. This multimeter is $38 normal price and non-contact voltage detector + GFCI tester aren't exactly expensive.

It's also a non-true RMS, manual ranging meter and you could probably do better for barely more money.
Apr 10, 2024
150 Posts
Joined May 2017
Apr 10, 2024
JimmyyT
Apr 10, 2024
150 Posts
Quote from TenseHamster4473 :
OK deal if you need all the extra bits. This multimeter is $38 normal price and non-contact voltage detector + GFCI tester aren't exactly expensive.

It's also a non-true RMS, manual ranging meter and you could probably do better for barely more money.
How much is this bundle usually?
Apr 10, 2024
725 Posts
Joined Aug 2011
Apr 10, 2024
wake09
Apr 10, 2024
725 Posts
Quote from TenseHamster4473 :
OK deal if you need all the extra bits. This multimeter is $38 normal price and non-contact voltage detector + GFCI tester aren't exactly expensive.

It's also a non-true RMS, manual ranging meter and you could probably do better for barely more money.
Do you have any suggestions? The battery leaked on my old tester and corroded the contacts down to nothing so I'm looking for a new one.
Apr 10, 2024
153 Posts
Joined Oct 2020
Apr 10, 2024
TenseHamster4473
Apr 10, 2024
153 Posts
MM420 is basically the same meter with auto ranging and TRMS.

CL220 has a clamp and often suggested as the most meter any homeowner will ever need, you could take apart an entire HVAC system with it. I think both of those are < $60.

Uni-T meters also have great value/$ but they have so many models, hard to say which is the right buy. Ames meters at Harbor Freight are supposed to be halfway decent but unless you have a coupon, I don't see them being much cheaper than a Klein for the same features.
Apr 10, 2024
89 Posts
Joined May 2021
Apr 10, 2024
gorillamind
Apr 10, 2024
89 Posts
Extra %10 at home Depot if you use military discount

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Apr 10, 2024
5,031 Posts
Joined Jul 2010
Apr 10, 2024
BuddyLove99
Apr 10, 2024
5,031 Posts
Done bought all the testers.. probably should've just got a multimeter to start off with.
1
Apr 10, 2024
958 Posts
Joined Apr 2008
Apr 10, 2024
jbwhite99
Apr 10, 2024
958 Posts
Lots of tools from other brands (not Klein) are on clearance at Lowes B&M - check the end of the aisles around electronics (obviously YMMV). Some of it is analog stuff - like RG6 and RJ45 equipment - but it may be of use for some folks.
Apr 10, 2024
257 Posts
Joined Sep 2020
Apr 10, 2024
ScarletSnow543
Apr 10, 2024
257 Posts
I have MM400, which is auto ranging. I wish I had this one, because the auto ranging meter defaults to AC measurements and I mostly do DC measurements. The meter is slow so I have to turn it on, wait, and switch to DC. Same for the continuity/ohmmeter which defaults to continuity. I don't mind the manual ranging because the auto ranging is rather slow. These all all basic meters.
Apr 11, 2024
5,031 Posts
Joined Jul 2010
Apr 11, 2024
BuddyLove99
Apr 11, 2024
5,031 Posts
Quote from ScarletSnow543 :
I have MM400, which is auto ranging. I wish I had this one, because the auto ranging meter defaults to AC measurements and I mostly do DC measurements. The meter is slow so I have to turn it on, wait, and switch to DC. Same for the continuity/ohmmeter which defaults to continuity. I don't mind the manual ranging because the auto ranging is rather slow. These all all basic meters.
It's decent to you, but fancy to me. I'm trying to justify buying when I doubt I'd ever need to use it.
1
Apr 11, 2024
257 Posts
Joined Sep 2020
Apr 11, 2024
ScarletSnow543
Apr 11, 2024
257 Posts
Quote from BuddyLove99 :
It's decent to you, but fancy to me. I'm trying to justify buying when I doubt I'd ever need to use it.
A multimeter is a tool much like a screw driver set. You would not need it most of the time but it's good to have it when you need it. I use my multimeter mostly for electronics projects so that's a must-have for me. Meters like these shall last a long time if batteries don't leak and corrode contacts.
Apr 16, 2024
66 Posts
Joined Dec 2004
Apr 16, 2024
vice101
Apr 16, 2024
66 Posts
In stock at home depot for me.
Apr 16, 2024
509 Posts
Joined Feb 2014
Apr 16, 2024
rhlol
Apr 16, 2024
509 Posts
Quote from JimmyyT :
How much is this bundle usually?
I paid $70 for it 5 days ago and did not open the package yet. Going back.

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Apr 17, 2024
364 Posts
Joined Mar 2011
Apr 17, 2024
PBouge
Apr 17, 2024
364 Posts
I'd maybe recommend this for a homeowner, but the multimeter is complete garbage in this set. The plug tester is pro quality and the tic tracer kind of is, but this tic tracer is known to have issues with turning off and the battery getting loose. I still like the tic tracer but I am on my 3rd or 4th one now, it's not nearly as reliable as the fluke 1AC. The ET45 is honestly a useless tool, but all in all if you need everything in this kit you should buy it. If you want a pro quality get fluke 1AC and pair it with one of the cheaper fluke meters like T5 600. Most basic recept testers are fine from southwire, ideal, klein, or fluke

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