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Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More

Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More

Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More
$ 89.97

Score By Feature

Based on 472 ratings
Value for money
9.91
Accuracy
9.70
Easy to read
9.29
Easy to use
8.68

OveReview Final Score

How Our Score Is Calculated

Product Description

By entering your model number, you can make sure that this fits.
On the side of the clamp is a test lead holder, as well as a magnetic hanger for the meter (Cat. Nos. For hands-free operation, dial 69445 or 69417)
Incorporated into the clamp jaw is a non-contact voltage tester.
Reverse-contrast LCD display with high visibility for better visibility in all lighting conditions.
True Root Mean Squared (TRMS) measurement technology that automatically ranges for accuracy
Measures AC/DC current and NCVT with a clamp, as well as AC/DC voltage, resistance, frequency, DC microamps, capacitance, duty cycle, diode test, and continuity with test-leads, as well as temperature with a thermocouple.
A K-Type thermocouple probe is used to measure temperature.
Max/Min, Rel/Zero, and Data Hold capabilities are all available.

Questions & Answers

does cl390 (non-steroidal anti-inflammatory drug) have any effect? Both ac and dc non-inductive voltages are measured with a contact voltage tester. or simply ac non-contact contact?

Amperage in both AC and DC

Is it a product of the United States of America?

No way, China.

Is this product made in the United States?

Klein's tools are made in the United States for the most part. As some products are insourced to their USA plants and new product lines are added, the exact percentage changes frequently. Klein has introduced a slew of new US-based products. In recent years, manufactured products (hole-in-the-wall) have become more popular. screwdrivers, fish tapes, utility wrenches, buckets, bags, and so forth). Klein Tools has invested heavily in new equipment and tooling in their plants to expand capacity and quality over the last decade, and has opened four new US manufacturing facilities.

What's the difference between a CL390 and a CL380?

The CL390 has an additional probe holder on the clamp to help with one-handed operation, as well as a slightly different design layout.

Selected User Reviews For Klein Tools CL390 Digital Clamp Meter, Reverse Contrast Display, Auto Ranging 400A AC/DC, AC/DC Voltage,TRMS, DC Microamps, Temp, NCVT, More

Clamp Multimeter is a fantastic tool
5/5

I bought this multimeter primarily to use with the clamp to measure DC and AC currents, as I already had a couple of more precise non-contact multimeters. clamp meters are a type of meter. This is a fantastic tool! Because the tool uses an Hall effect sensor, extraneous EM fields from nearby currents can affect accuracy when measuring DC currents, particularly in the more sensitive 40A range. br>For a more accurate measurement, disconnect the power source of what you're measuring, clamp the meter around the cable to be measured, press the meter's relative zero button, reconnect the power source, and then read the measurement.

Francisco Mason
Francisco Mason
| Jun 24, 2021
Three smaller issues, accurate, tough, and easy to read
4/5

The tool itself is well-made and performs admirably within its range, which is the most important factor. Although the reverse contrast display is easier to read, the timeout feature can appear to be too short at times. I'm curious if it's possible to change that. Just keep in mind that a good case and a magnetic clip will set you back a few dollars more. Physical positioning is also a part of ease of use. The new case is a complete waste of money. The older ones were lined and more durable, and the meter was also equipped with a built-in magnet. Overall, it's a great meter for the money at $75. The auto-off timer can be a real pain.

Reagan Mahoney
Reagan Mahoney
| May 30, 2021
If you're considering purchasing this meter, do so
5/5

It has the elusive DC clamp on amperage meter, which is crucial on 12 volt systems, and I troubleshoot electrical boat issues with it. It's dead on. The digital display has a brightly lit display. After 5 minutes of non-use, it emits a subtle reminder tone. After a brief period of use, it beeps once and then shuts down about a minute later. I hemmed and hawed about this purchase because I wanted a fluke. Probes are high-quality and versatile. This is an absolute must-have.

Kenia Ibarra
Kenia Ibarra
| Feb 17, 2021
It's a good tool, but the auto-off feature is annoyingly quick
4/5

I'm on my third version of Klein Amp Clamp meters, and it's a good tool. The only gripe I have is that the auto-off feature appears to turn off very quickly. Otherwise, everything appears to be in order.

Sydney Daniel
Sydney Daniel
| Aug 02, 2021
So far, I'm a fan - Meter of high quality
5/5

I'm not usually one to give five stars, but this time it's appropriate. The unit has a solid, well-made feel to it. When tested against known amperage, the clamp-on feature is dead on. So far, I'm pleased with everything about the Klein CL390, including the price, but what really made it a 5 star product was the instruction manual, which was thorough, clear, technically correct, and clearly written by someone who is fluent in English.

Emily Hardin
Emily Hardin
| Oct 22, 2021
Poor visibility, a joke of an AC/DC switch, and it times out too soon
3/5

Klein Tools is known for producing high-quality products, but this time they fell short. Because of the following reasons:

- The concept of a "high contrast display" is a farce. Outside, it's difficult to see, and if the sun is shining, forget about it. The digits fade when the screen is tilted at an angle. The meter is always set to the lowest brightness level when you turn it on. The "higher" brightness setting isn't deserving of its moniker.
- It will turn on in AC mode, but it will not auto switch if you try to measure 12VDC, as in a car. It's a little difficult to use the selector button to change modes.
- The probe holder on the clamp's side is a good idea, but only if the probe extends further from the clamp.
- Timing out too soon is a recurring problem. br>br>I will not use this meter as my primary meter; it will be replaced by a different model, possibly even a different brad.

Cooper Li
Cooper Li
| Sep 20, 2021
This meter is incredible
5/5

This meter is incredible. The meter and temperature probe are easily stored in the case. I attached the magnet to the back of the card. It is easy to put on and take off. It appears to be the ideal situation. For battery checks, the probe simply snaps onto the meter.

Jett Gutierrez
Jett Gutierrez
| Dec 30, 2020
With no backlight, it is difficult to see
3/5

The meter is as described, but it seems to fluctuate when measuring amps with the clamp, which I believe is because it is designed to measure higher than I am on a vehicle. The meter and accessories are far too small for the case.

Jimmy Atkins
Jimmy Atkins
| Sep 27, 2021

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