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Klein Tools

Model # CL1000

Internet # 202266605

Store SKU # 363835

400 Amp AC Digital Clamp Meter

This item has been discontinued.
The Home Depot no longer carries this specific product.

$89.97 /each


Model # CL1000

Internet # 202266605

Store SKU # 363835

The Klein Tools 400 Amp AC Digital Clamp Meter is designed to automatically adjust its internal range for improved readings. This device offers the ability to store your calculations for later review and features an analog bar graph. The backlit LCD display and work light can help you see readings more clearly. The package comes with 2 AAA-Alkaline batteries.

  • Tests for AC voltage for accurate readings
  • Non-contact voltage measurement
  • Features a low battery indicator and an audible alert
  • Allows you to store data calculations for later review
  • Auto shut-off feature extends battery life by conserving power
  • Analog bar graph
  • Case included
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Product Depth (in.) 
1.5 in 
Product Height (in.) 
8.875 in 
Product Width (in.) 
3.375 in 
Audible Alert 
Auto Ranging 
Batteries Included 
Battery Charger Included 
Battery Power Type 
Battery Size 
Case Included 
Category Rating 
Control Type 
Data Log/Record 
Data hold 
Display Type 
Dual voltage indication 
Integral lead storage 
Interchangeable leads 
Low Battery Indicator 
Noncontact detection 
Number of Batteries Required 
Number of Functions 
Number of Ranges 
Product Weight (lb.) 
10.7 lb 
Reference Scale Included 
Test Meter Type 
Tools Product Type 
Test Meter 
Vibration Alert 
Visual Alert 
Voltage (volts) 
Warranty / Certifications
Manufacturer Warranty 
This product is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. This warranty does not cover damage which occurs in shipment or failure which results from alteration, tampering, accident, misuse, abuse, neglect, or improper maintenance. 


Rated 4.6 out of 5 by 14 reviewers.
Rated 5.0 out of 5.0 by Excellent value and capability First thing is first, this meter is clearly a rebranded UEI meter. Which isn't a bad thing, UEI makes a good meter and their partnership with Klein has given them a good head start on a pretty competitive market. I"ve been using the CL1000 meter for about 3 months now in the HVAC trade and around the house. I have to admit that I wasn't sure about whether it would be able to hold up to my expectations. (I've used fluke and extech meters in the past) So far, i've found it is an excellent product that has alot of capability. The size of the meter is perfect, not too large or too small. The screen isn't super crisp but it has large digits and the bar graph is a nice touch. The test lead wires are not long, but that hasn't hindered me at all, the smaller finger guards are excellent and the strain relief on the wires is decent. I've tried all of the capabilities and compared a number of them to my fluke 324-- the Klein has not let me down. Add in the magnet on the back of the meter and the test probe holder it is built for use in the field and has found a permanent spot in my tool bag. May 13, 2014
Rated 4.0 out of 5.0 by Good value Good meter or the money but I wish it had DC amp meter July 21, 2015
Rated 5.0 out of 5.0 by Works well as advertised. Having better performance than my Ideal brand. Bought primarily for clamp amperage reading but use all other functions as well. Nice to have alligator clip adapters for lead wire probes. Range selection fast and easy. Will be able to give more complete review after all functions get a thorough work out. So far it seems to be a much better value than Fluke or Ideal. July 14, 2015
Rated 5.0 out of 5.0 by Nice tool! Sometimes it's worth spending a little more on a tool. Something that measures electricity, used when you're trying to ascertain if a wire is live before you touch it, would be an excellent example of one of those times. I've found this meter to be solidly reliable in its readings and has plenty of features for anyone this side of a master electrician. January 27, 2015
Rated 5.0 out of 5.0 by Professional use. Does everything I need at a reasonable cost. My old Amprobe gave up the ghost after40 years. Heartbreaking, but I had to replace it. This was at HD for a very reasonable price and I have used Klein hand tools for 47 years. An exceptional brand and quality of tools. So I decided to try their meters and am quite pleased with the results. I do wish I had gotten one with a backlight, but it is a little late for that. If this meter lasts half as well as some of the hand tools It will be a bargain. I still use my firts set of "Nines" that I got about 47 years ago. January 28, 2014
Rated 5.0 out of 5.0 by Does everything I need for HVACR I just started taking classes for HVACR this past January 2015 (now march 2015) and before I purchased this meter I asked my instructor who has been in the field for 35 years about it and he said it has everything Ill ever need in a clamp meter and more so I purchased it and showed it to him and he likes it more than his fluke! I use it everyday and NO complaints! Audible continuity and NCV alarms are very loud, magnet in the back holds the meter to the metal surfaces on running air units very well, great backlight and flashlight is actually pretty handy and bright, clamp jaws are great very easy to use right or left handed and the probe holder on the back holds the leads very well and there is also a lead holder on the stationary clamp arm that is quite useful I have used that feature alot to hold the meter and probe stuff with one hand and have the probe in the other hand when a metal surface wasn't around to stick the meter to. Klein really thought well to make this a highly versatile meter!!!. I could have got one that has temperature but I already had a digital thermometer. HIGHLY RECOMMEND!!! March 27, 2015
Rated 5.0 out of 5.0 by Klein ammeter Replacement for one that got stolen. Works good and does what it is supposed to do. March 24, 2015
Rated 5.0 out of 5.0 by works great went in to purchase the meter that was on sale they were out. bought the next one up. one feature i've never had was a magnet on the back. thats so handy ! Free's up one hand. January 24, 2013
  • 2015-08-29T11:34:21.965-05:00
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