Slickdeals is community-supported.  We may get paid by brands or deals, including promoted items.
Sorry, this deal has expired. Get notified of deals like this in the future. Add Deal Alert for this Item
Frontpage

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

$75
$89.97
+ Free Shipping
+37 Deal Score
28,916 Views
Amazon has Klein Tools CL390 Digital Auto Ranging Clamp Meter (400A AC/DC) on sale for $74.97. Shipping is free.

Thanks to Community Member java007 for posting this deal.

About this Product:
  • Test lead holder on side of clamp and optional magnetic hanger for meter (Cat. Nos. 69445 or 69417) for hands free operation
  • Non-contact voltage tester integrated into the clamp jaw
  • High-visibility reverse contrast LCD display for improved view ability in all ambient lighting conditions
  • Automatically ranging True Root Mean Squared (TRMS) measurement technology for accuracy
  • Measures AC/DC current and NCVT via clamp and AC/DC voltage, resistance, frequency, DC microamps, capacitance, duty cycle, diode test, and continuity via test-leads, and temperature with thermocouple
  • Measures temperature with a K-Type thermocouple probe
  • Max/Min, Rel/Zero and Data Hold capability
  • Auto-power off after 10 minutes to conserve battery life
  • Includes a carrying case, test leads with CAT III/CAT IV safety caps, thermocouple, instructions, and 3 x AAA batteries
  • Low battery indicator and easily accessible battery compartment
  • Built to withstand a 6.6-Foot (2 m) drop
  • CAT III 600V, Class 2, Double insulation safety rating
  • Deal Image
  • Deal Image
  • Deal Image
  • Deal Image
  • Deal Image
Deal Image
Visit Amazon
Good Deal?

Original Post

Written by
Edited July 1, 2022 at 07:18 PM by
https://smile.amazon.com/dp/B08DTDCG7T

From the Amazon listing:

Klein Tools CL390 is an automatically ranging true root mean squared (TRMS) digital clamp meter. It measures AC/DC current and NCVT via the clamp, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, and diodes via test leads, and temperature via a thermocouple probe.

------

Not the lowest price in history (per 3x camel), but near recent lows. Reviews are mostly positive. Viewing in sunlight seems to be a weak point, so if working on an outdoor A/C unit in the sun, you may want another option.

Seems like at least a decent deal if you need the features without jumping way up in price for fluke, etc.
Add Comment
Reply
in Tools (5)
If you purchase something through a post on our site, Slickdeals may get a small share of the sale.

Check Out Similar Tools Deals

View All
Popular
ryobi EZClean Power Cleaner Chemical Nozzle Kit -super elite deal hunter’s favorite category ,aka ‘penny clearance’ 👀-1 cent-normally $54.97-ymmv - Home Depot - $0.01
$0.01
30 41
Frontpage
Hart 300 Lumens Rechargeable LED Work Light w/ Magnetic Base $11.04 & More + Free Shipping w/ Walmart+ or $35+
$11.05
48 11
Frontpage
RYOBI Expand-it 17.5" Hedge Trimmer Attachment in-store YMMV $10
$10
(In-Store Only)
48 110
Frontpage
Wurkkos FC13 3500lm Flashlight, RGB AUX Button Light + Free Shipping Including battery: $22.49 with coupon
$20
+ Free Shipping
58 58
Frontpage
Milwaukee 48-11-1837 M18™ REDLITHIUM™ HIGH OUTPUT™ CP3.0 Battery 2-Pack - $85 at Way Source
$85
+ Free S&H on $99+
28 53
Frontpage
Non Branded 6" Diagonal Pliers $1
$1
54 38
Deal
Score +37
28,916 Views
$75
$89.97
Visit Amazon
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more. If you're not a student, there's also a free 1-Month Amazon Prime trial available. You can also earn cash back rewards on Amazon and Whole Foods purchases with the Amazon Prime Visa credit card. Read our review to see if it’s the right card for you.

59 Comments

View Forum Thread
1234

Your comment cannot be blank.

Featured Comments

I wont trust my safety to some no name Chinese crap meter. Just my 2 cents.
·
I recently needed a capacitance meter to check my HVAC run capacitor. That's the main limitation I had with my DMM
·
I used mine (older model) recently to measure my furnace startup current so I could size a generator.
·

Sign up for a Slickdeals account to remove this ad.

Joined Dec 2008
L5: Journeyman
> bubble2 572 Posts
48 Reputation
Lovegasoline
07-03-2022 at 07:20 PM.

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

07-03-2022 at 07:20 PM.
I'm not commenting on the quality of the Klein meter or the Habotest meter.
Nevertheless, there's a lot more to meters than just price and online reviews (for ex. design, build quality, durability, reliability, accuracy, certifications, warranty, safety, etc.).
Have a look at the video below (and if you find it interesting and you do a search on the creator's Youtube page he's got a Part 2 which continues the Fluke factory tour).

Inside Fluke - The Measure of Innovation 2015 - Pt 1
https://www.youtube.com/watch?v=O...uUM&t=355s

^Not a Klein meter demonstrated, but a Fluke. Some meters may be used to produce magic smoke and magic flames.
What's the quality of the materials and internals of the cheap meter?
What's the quality of the fuse you get in the cheap meter?
YMMV on cheaply made cost cutting Chinese tools.

Quote from PCMAN1337 :
Just because YOU don't know the company doesn't mean it is no name. Plenty of reviews on this meter, one of the best. Sold also under Kaiweets brand.

Btw where do you think Klein is made? China just like this. How much is the Klein sticker worth to you?

.....and...

HT208D Max 1000V vs Klein MAX 600V.
HT208D Temperature Measuring Range -4 ~ 1832F vs Klein no measuring
HT208D Flashlight vs Klein no flashlight
HT208D fancy prongs vs Klein standard prongs

Don't know about the Klein but it is also very accurate, beating a Sanwa unit per this video:
https://youtu.be/p2v7-uQD6QM?t=519

And all of that for half the cost.

Could you name one point in which the Klein is better without mentioning the brand?

Quote from Banana_Fly :
Lord that 1000v is not 600v on Klein because the materials are not rated for 1000v. That crappy meter you are linking may be suicidal to use to measure 1000v in industrial settings. Is it UL listed? Does it have a company to sue if you get injured? Go buy it and be happy, but one needs to know about electrical safety, listings, and ratings before getting 1000v rated devices on Aliexpress
2
>
1
Like
Funny
>
Helpful
Not helpful
Reply
Last edited by Lovegasoline July 3, 2022 at 08:25 PM.
Joined Feb 2016
Lvl 68: Ra Like
> bubble2 323 Posts
30 Reputation
kemicala
07-04-2022 at 02:26 AM.
07-04-2022 at 02:26 AM.
Quote from blahblahyoutoo :
Thanks. seems like a edge case and not a typical/often event.
Could be used to find parasitic draws on cars. Not "frequent" occurrence, but very useful when needed
1
Like
Funny
>
Helpful
Not helpful
Reply
Joined Jul 2009
L∞: Ascended
> bubble2 964 Posts
481 Reputation
PCMAN1337
07-04-2022 at 03:38 AM.
07-04-2022 at 03:38 AM.
Quote from lepa71 :
I once bought a laser measuring tape from an unknown brand on amazon with 4.5 stars and 1000+ reviews. It quit working after 6 months of using it a couple of times. Yes, it was $20 cheaper and now it is a paperweight as the seller is no longer there.

No thanks.
That sucks. Was the seller habotest?
2
Like
Funny
>
Helpful
Not helpful
Reply
Joined Sep 2007
L4: Apprentice
> bubble2 465 Posts
58 Reputation
LmG7119
07-04-2022 at 08:12 AM.
07-04-2022 at 08:12 AM.
Quote from PCMAN1337 :
That sucks. Was the seller habotest?
Don't kid yourself. There are plenty of those on alibaba and amazon.

It seems that you are their rep here.
Enjoy it.
2
1
Like
Funny
>
Helpful
Not helpful
Reply
Joined Nov 2016
L5: Journeyman
> bubble2 624 Posts
82 Reputation
Speedmaster1
07-04-2022 at 09:37 AM.
07-04-2022 at 09:37 AM.
Quote from PCMAN1337 :
half price and better product and better accessories and more features: HT208D

https://www.aliexpress.com/item/3...50231.html

Far from it. If you talk about better that goes to Fluke.
2
Like
Funny
>
Helpful
Not helpful
Reply
Joined Nov 2013
L3: Novice
> bubble2 261 Posts
46 Reputation
JamesT9955
07-04-2022 at 11:25 AM.
07-04-2022 at 11:25 AM.
Quote from hy_tek :
I wont trust my safety to some no name Chinese crap meter. Just my 2 cents.
You say you're worried about your safety but you're not testing your meter against a known voltage before using it?
>
1
3
Like
Funny
>
Helpful
Not helpful
Reply
Joined Feb 2004
L6: Expert
> bubble2 1,643 Posts
211 Reputation
Shushera
07-04-2022 at 03:36 PM.
07-04-2022 at 03:36 PM.
Dont get that one. Get Uni-T. This is popular in DYI, tons of hacks, etc. Very good calibration out of factory.
https://www.amazon.com/UNI-T-Digi...08PP15B87/
https://www.amazon.com/dp/B08PPDCWFV/
1
2
Like
Funny
>
Helpful
Not helpful
Reply

Sign up for a Slickdeals account to remove this ad.

Joined Feb 2008
L6: Expert
> bubble2 1,967 Posts
298 Reputation
Kuma1
07-04-2022 at 05:04 PM.
07-04-2022 at 05:04 PM.
Quote from Shurak :
Dont get that one. Get Uni-T. This is popular in DYI, tons of hacks, etc. Very good calibration out of factory.
https://www.amazon.com/UNI-T-Digi...08PP15B87/
https://www.amazon.com/dp/B08PPDCWFV/
Oh no. Your recommendation may cause another rant by a name brand fan. That Uni-T costs even less on Aliexpress. As mentioned earlier, I bought several items from that site with no problems.
1
1
3
Like
Funny
>
Helpful
Not helpful
Reply
Joined Jan 2010
Give me wings to fly
> bubble2 13,583 Posts
1,020 Reputation
Ride_The_Sky
07-04-2022 at 05:07 PM.
07-04-2022 at 05:07 PM.
Quote from vha23 :
Search slickdeals for circuit finder. I got a Klein a year ago and used it once. It was able to locate my circuit in my panel. I think it was like $20.

Another option I used to do before I had the tester: set up WiFi camera or a WiFi router on circuit you want to find. Connect to that on your phone. Go to panel and turn of breakers until you lose the connection. Not ideal, but easy for a one person job.
Thanks for the suggestion.
Like
Funny
>
Helpful
Not helpful
Reply
Joined Feb 2004
L6: Expert
> bubble2 1,643 Posts
211 Reputation
Shushera
07-04-2022 at 05:29 PM.
07-04-2022 at 05:29 PM.
Quote from Kuma1 :
Oh no. Your recommendation may cause another rant by a name brand fan. That Uni-T costs even less on Aliexpress. As mentioned earlier, I bought several items from that site with no problems.
aliexpress is ok if one does not mind waiting. If not delivered or have issues they will refund, no issues. Also some items tend to be comparable to amazon/ebay prices with local delivery so watch out for that as well.
1
Like
Funny
>
Helpful
Not helpful
Reply
Joined Feb 2004
L6: Expert
> bubble2 1,643 Posts
211 Reputation
Shushera
07-04-2022 at 05:33 PM.
07-04-2022 at 05:33 PM.
Quote from juryrig :
As a homeowner, I just purchased this because I recently had my 220V dryer outlet fail in a scary way (lots of sparks and melted plastic) and it was hard to troubleshoot and validate the fix because my multimeters couldn't handle a 30 amp circuit. The extra features are just a bonus.
Why would multimeter need to handle 30A circuit to troubleshoot 220V power outlet?
1
Like
Funny
>
Helpful
Not helpful
Reply
Joined Dec 2011
L7: Teacher
> bubble2 2,884 Posts
388 Reputation
thefisch
07-09-2022 at 09:14 PM.
07-09-2022 at 09:14 PM.
At first I was impressed with the Klein CL390 over the Ideal 61-747 as the NCV sensor has a more sensitive sensing range like a Geiger counter plus the added feature of measuring DC milliamps. However, the DC milliamps measuring requires the test probes connected in series rather than just the clamp which is what I was trying to avoid. Also, the display on the CL390 is almost unreadable with any glare especially outside in sunlight when checking the compressor or car in the driveway.

Quote from thefisch :
Thanks OP. I picked up one of these from HD a couple of weeks ago for $90 so you saved me $15.

I also picked up the Ideal 61-747 for around this price on Amazon the other week. I will be trying out the Ideal and this Klein to see which one I prefer.
I may check out the Uni-T mentioned below since the smaller clamp with 100A limit seems to provide some usefulness for auto troubleshooting with DC milliamps measuring via the clamp. Frankly, I probably don't need more than 100A detection for my DIY needs.

Quote from Shurak :
Dont get that one. Get Uni-T. This is popular in DYI, tons of hacks, etc. Very good calibration out of factory.
https://www.amazon.com/UNI-T-Digi...08PP15B87/
https://www.amazon.com/dp/B08PPDCWFV/
Like
Funny
>
Helpful
Not helpful
Reply
Joined Mar 2005
L3: Novice
> bubble2 213 Posts
71 Reputation
funkychateau
08-23-2022 at 01:09 AM.
08-23-2022 at 01:09 AM.
Quote from ClintiePoo :
Agree - checking for the generator is the only time I've used the clamp/current feature of mine. Others may have better use cases.
Current measurement, while perhaps not as common as voltage, is still an essential capability. The ability to measure current without breaking the circuit (using the clamp) is a nice feature, For example, if you want to see the resting current drawn by your car's electronics, just check it at the positive cable. About how long should the internal battery run your fish finder? Measure the current flow at either terminal, then divide into the AH capacity of the battery to approximate the runtime. Does your "75-W equivalent" LED bulb really only consume 12 watts? Measure AC current by placing clamp around one wire of the lamp cord, then multiply amps times line voltage (measured at the receptacle using the probes) to calculate watts used. Possibilities are limited only by your imagination.
Like
Funny
>
Helpful
Not helpful
Reply
Joined May 2007
L9: Master
> bubble2 4,300 Posts
499 Reputation
hy_tek
09-22-2022 at 07:22 AM.
09-22-2022 at 07:22 AM.
Quote from PCMAN1337 :
Just because YOU don't know the company doesn't mean it is no name. Plenty of reviews on this meter, one of the best. Sold also under Kaiweets brand.

Btw where do you think Klein is made? China just like this. How much is the Klein sticker worth to you?
I said I would not buy no name Chinese brands not Klein Einstein. But thanks for the pointless rant directed towards me about nothing. Quite humorous.
Like
Funny
>
Helpful
Not helpful
Reply

Sign up for a Slickdeals account to remove this ad.

Joined Jul 2009
L∞: Ascended
> bubble2 964 Posts
481 Reputation
PCMAN1337
09-22-2022 at 10:03 AM.
09-22-2022 at 10:03 AM.
Quote from hy_tek :
I said I would not buy no name Chinese brands not Klein Einstein. But thanks for the pointless rant directed towards me about nothing. Quite humorous.
cope seethe
Like
Funny
>
Helpful
Not helpful
Reply
Page 4 of 4
1234
Start the Conversation
 

Popular Deals

Trending Deals

More Amazon Deals

More Klein Tools Deals

Link Copied

The link has been copied to the clipboard.