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phoinix | Staff 18.3K Views
Mar 15, 2026 7:14 AM

Klein Tools CL390 Digital Auto Ranging Clamp Meter (400A AC/DC)

$66

$100

34% off
+ Free Shippingat Amazon
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Deal Details
Amazon has Klein Tools CL390 Digital Auto Ranging Clamp Meter (400A AC/DC) on sale for $65.98. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

Product Details:
  • Measures AC/DC current and NCVT via clamp; AC/DC voltage, resistance, continuity, frequency/duty cycle, DC microamps, diode test and capacitance via test-leads; temperature via thermocouple
  • Integrated into the clamp jaw for convenient electrical testing
  • High-visibility reverse-contrast LCD ensures improved viewability in all lighting conditions
  • Auto-ranging and True Root Mean Squared (TRMS) technology provides precise and accurate measurements
  • Test lead holder on the side of the clamp and optional magnetic hanger (Cat. Nos. 69445 or 69417) for hands-free operation
  • Includes a carrying case, test leads, thermocouple, and batteries

Editor's Notes

Written by ValPal2011 | Staff
  • About this deal:
    • Deal price is $2.01 lower than a previous Frontpage Deal from February 2025!
    • Our research indicates that this deal is $13.02 less (16% savings) than the next best available price from a reputable merchant with prices starting from $79 at the time of this posting.
  • About this store:
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Klein Tools CL390 Digital Auto Ranging Clamp Meter (400A AC/DC) on sale for $65.98. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

Product Details:
  • Measures AC/DC current and NCVT via clamp; AC/DC voltage, resistance, continuity, frequency/duty cycle, DC microamps, diode test and capacitance via test-leads; temperature via thermocouple
  • Integrated into the clamp jaw for convenient electrical testing
  • High-visibility reverse-contrast LCD ensures improved viewability in all lighting conditions
  • Auto-ranging and True Root Mean Squared (TRMS) technology provides precise and accurate measurements
  • Test lead holder on the side of the clamp and optional magnetic hanger (Cat. Nos. 69445 or 69417) for hands-free operation
  • Includes a carrying case, test leads, thermocouple, and batteries

Editor's Notes

Written by ValPal2011 | Staff
  • About this deal:
    • Deal price is $2.01 lower than a previous Frontpage Deal from February 2025!
    • Our research indicates that this deal is $13.02 less (16% savings) than the next best available price from a reputable merchant with prices starting from $79 at the time of this posting.
  • About this store:
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff

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Top Comments

CrimsonCheetah9927
570Comments
79Reputation
It doesn't. Fluke is more expensive and higher quality. This will probably be good enough for 99% of people though. I'm a commercial electrician and have a similar Klein Meter and it's all I need. I'd buy a fluke if I worked on a lot of high voltage or sensitive/expensive equipment routinely where a small mistake or variance could cost big $$$$.
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34 Comments

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Mar 15, 2026 1:03 PM
357 Comments
Joined Dec 2016
ISKRA87Mar 15, 2026 1:03 PM
357 Comments
SD! According to Keepa, the lowest price on Amazon in the last year was $77.81
Mar 15, 2026 1:32 PM
47 Comments
Joined Nov 2019
RobE.Mar 15, 2026 1:32 PM
47 Comments
This is a good deal.
1
Mar 15, 2026 1:54 PM
456 Comments
Joined Mar 2015
JuanL1597Mar 15, 2026 1:54 PM
456 Comments
Solid price for a great clamp meter.
1
Mar 15, 2026 3:42 PM
25 Comments
Joined Oct 2013
alskioMar 15, 2026 3:42 PM
25 Comments
Thanks
1
Mar 15, 2026 3:50 PM
721 Comments
Joined Oct 2011
KraziAznMar 15, 2026 3:50 PM
721 Comments
How does this compare to the fluke?
Mar 15, 2026 3:55 PM
22 Comments
Joined Aug 2008
donte72Mar 15, 2026 3:55 PM
22 Comments
Thanks
1
Mar 15, 2026 4:46 PM
570 Comments
Joined Aug 2019
CrimsonCheetah9927Mar 15, 2026 4:46 PM
570 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from KraziAzn View quoted comment :
How does this compare to the fluke?
It doesn't. Fluke is more expensive and higher quality. This will probably be good enough for 99% of people though. I'm a commercial electrician and have a similar Klein Meter and it's all I need. I'd buy a fluke if I worked on a lot of high voltage or sensitive/expensive equipment routinely where a small mistake or variance could cost big $$$$.
2
1

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Mar 15, 2026 4:54 PM
149 Comments
Joined Nov 2010
iamspankyMar 15, 2026 4:54 PM
149 Comments
Everyone needs one of these in their house, it definitely helps save money
1
Mar 15, 2026 4:58 PM
252 Comments
Joined Mar 2010
SurveyorMar 15, 2026 4:58 PM
252 Comments
this deal would be a bit better https://www.amazon.com/Klein-Tool...4B27&psc=1
1
Mar 15, 2026 5:01 PM
695 Comments
Joined Apr 2010
ShotgoonMar 15, 2026 5:01 PM
695 Comments
Can the clamp measure DC current?
Mar 15, 2026 5:02 PM
721 Comments
Joined Oct 2011
KraziAznMar 15, 2026 5:02 PM
721 Comments
Quote from CrimsonCheetah9927 View quoted comment :
It doesn't. Fluke is more expensive and higher quality. This will probably be good enough for 99% of people though. I'm a commercial electrician and have a similar Klein Meter and it's all I need. I'd buy a fluke if I worked on a lot of high voltage or sensitive/expensive equipment routinely where a small mistake or variance could cost big $$$$.
Thank you.
2
Mar 15, 2026 5:05 PM
252 Comments
Joined Mar 2010
SurveyorMar 15, 2026 5:05 PM
252 Comments
Quote from Shotgoon View quoted comment :
Can the clamp measure DC current?
definately
Mar 15, 2026 5:33 PM
114 Comments
Joined Sep 2017
Fixation68Mar 15, 2026 5:33 PM
114 Comments
I like my Klein clamp meter.. if mine ever dies i will buy another
Mar 15, 2026 5:35 PM
682 Comments
Joined Nov 2006
TROLLMar 15, 2026 5:35 PM
682 Comments
Quote from Surveyor View quoted comment :
this deal would be a bit better https://www.amazon.com/Klein-Tool...4B27&psc=1
The meters you're comparing are different so just depends on what features are desired.

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Mar 15, 2026 5:37 PM
801 Comments
Joined Mar 2008
novemberrMar 15, 2026 5:37 PM
801 Comments
Quote from Surveyor View quoted comment :
this deal would be a bit better https://www.amazon.com/Klein-Tool...4B27&psc=1
It comes with FCI Tester and Line and Splitter. But it is not TRMS and no Temperature.
Which one to get?

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