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KLEIN TOOLS

Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance

  • Based on 1,551 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Sep 23
Order within 23 hours and 55 minutes
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Pattern Name: Electric Circuit Testing Device


Style: USB-A and USB-C Meter


Features

  • VERSATILE USB TESTING: Test voltage from 3 to 20V DC and current from 0.05 to 3A (USB-A) and current from 0.05 to 5A (USB-C), covering most common standard USB ports, including Qualcomm Quick Charge ports
  • EXTENSIVE MONITORING: Continuously monitor voltage, current, capacity/charge delivered, energy, and resistance (calculated) for up to 1000 hours, providing comprehensive data insights
  • CONVENIENT DATA STORAGE: Store and recall up to 10 readings, allowing easy access to previous measurements for comparison and analysis
  • OVERLOAD DETECTION: Detect voltage and current overload, ensuring the safety and protection of your devices and power sources during testing
  • HIGH-RESOLUTION LCD: The hi-resolution LCD provides clear visibility of measurements, even in environments with low ambient lighting, ensuring easy reading of data
  • EASY SETUP: Simply connect the device in line between the source being measured and the power source for seamless and accurate measurements
  • RUGGED DESIGN: Durable, pocket-sized and light weight design with 6.6 ft. (2 m) drop protection stands up to jobsite demands

Description

The Klein Tools ET920 is a USB digital meter for Type-A and Type-C ports. It accurately and reliably measures and displays the USB port voltage, current, capacity, energy, and resistance simultaneously. It can function with any USB-A and most USB-C ports, including Qualcomm Quick Charge ports that have the ability to deliver power. It requires NO batteries as it draws power from the power source to function. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

Brand: KLEIN TOOLS


Power Source: Usb-port Powered


Style: USB-A and USB-C Meter


Item Weight: 1.7 Ounces


Item dimensions L x W x H: 9.04 x 1.95 x 0.53 inches


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 9.04 x 1.95 x 0.53 inches; 1.7 ounces


Item model number ‏ : ‎ ET920


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ August 29, 2018


Manufacturer ‏ : ‎ Klein Tools


Best Sellers Rank: #9,537 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Industrial Power Meters


#2 in Industrial Power Meters:


Customer Reviews: 4.4 4.4 out of 5 stars 1,551 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Versatile USB Power Meter: Accurate Measurements with Enhanced Features, but with One Minor Quirk
Pattern Name: Electric Circuit Testing Device Style: USB-A and USB-C Meter
This USB power meter is very versatile, allowing me to test voltage and current in USB connections. It can measure voltage from 3 to 20V DC and current from 0.05 to 3A (USB-A) or 0.05 to 5A (USB-C). This wide range covers most standard USB ports, including Qualcomm Quick Charge ports. With it, I can measure and display important information such as USB port voltage, current, capacity, energy, and resistance, providing valuable insight into my USB power usage on various devices. My only minor gripe is that the meter instantly shuts off after a low current draw or power cycle, rather than retaining the data. It would be more convenient if it saved the last reading for a short period. It's important to note that USB Type-C connections operate with efficiency and safety in mind, meaning that the charger will only supply power when it detects a device connected to the other end. If no device is connected, the power meter will not power up as it doesn't receive any power from the charger. This feature prevents unnecessary power wastage and reduces potential electrical hazards. --- Product: Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance ASIN: B07GXZHPVR ... show more
Reviewed in the United States on October 19, 2023 by Sam Fisher
    • Excellent design with a couple of leads for USB-A and USB-C, bright backlight
Pattern Name: Electric Circuit Testing Device Style: USB-A and USB-C Meter
Absolutely terrific, was able to measure a couple of USB-C wall chargers that were not rated as specified! Saved me a ton of $$s already. Thank you to the other reviewers who pointed out that the USB-C needs to have load on it prior to connecting the input to the power providing charger. USB-A is automatic. In any case, works well. The only thing I would ask is if it can also provide Watts on the display! (it does provide mAH and wH, for watts, have to just multiply Volts x Amps). A bit expensive, but well worth the ease of use. Highly recommend. ... show more
Reviewed in the United States on October 16, 2023 by curiousmetoo
    • Nice and Simple
Pattern Name: Electric Circuit Testing Device Style: USB-A Tester and Meter
What's different about this one (the USB-A Tester and Meter), is that it has the tester built in. I haven't really come across any USB power meters that have that feature. Either that or I have, and they were just too complex for me to realize that they did. What I would really like to see though, is something that's just like the power meter that has a USB-A and a USB-C output and input, and that also has a tester like this one does. As far as basic testing of what devices are charging at though, this tester and power meter works quite well, in my opinion. ... show more
Reviewed in the United States on July 12, 2023 by Zero Cool
    • Good meter, but plug the USB-C devices in the right orientation
Pattern Name: Electric Circuit Testing Device Style: USB-A and USB-C Meter
Review Image by Amazon Customer Amazon Customer
Review Image by Amazon Customer Amazon Customer
This is a pretty nice USB power meter. I have a very simple USB-C only power meter that works well, but it doesn't have any leads, so can sometimes be hard to plug in. Also I wanted a power meter that also did USB-A. Klein Tools is a great brand, so got this USB power meter. It works well and has plenty of features. It has a lead on one of the USB-C ends as well which helps with device arrangement. But it does have a draw back: USB-C is generally the same plug on both ends, and as such the devices can determine which ones supplies power and which one is the sink. But this power meter in USB-C mode you need to put it in the right direction or you get no amperage reading... seems like a weird design flaw. ... show more
Reviewed in the United States on August 25, 2022 by Amazon Customer Amazon Customer
    • Good pass / fail tester.
Pattern Name: Electric Circuit Testing Device Style: USB-A Tester and Meter
I bought this for testing USB ports in campers while working as an RV Technician. 910 Beside the data display screen there is the test screen which has 4 load levels to choose from. I have had a charge port ‘fail’, and it dimmed the bedroom lights too which indicated a problem. Very rare, but you don’t want to sell an $80k 5th wheel hauler that has a plug that won’t charge your phone! I’ve only played around with the pass thru feature so far, bought it for testing USB ports, which it does great. This isn’t for everyone, definitely a techie gadget. I only wish it had its own power so that I didn’t have to wait for it to ‘boot’ before testing. Some RVs have several ports throughout. I would buy again but I shouldn’t ever have to. It’s of good Klein quality. I like it. ... show more
Reviewed in the United States on August 21, 2022 by Skippy
    • Impresive for the price
Pattern Name: Electric Circuit Testing Device Style: USB-A Meter
I used this in line with another mre complex tool from another vnedor and found that it was consistently reading the same values and providing them quickly and clearly. Given the Klein brand premium and the price of only 14 I expected it would be as rudimentary as I could possibly imagine, but instead, I found it useful and more rugged than my PCB based USB analysis tools. So this one can go in the tool bag without a problem. Surprisingly good. ... show more
Reviewed in the United States on May 15, 2024 by Stephen A. Arnett
    • works great, USB-C and USB-A all work good, saves time, easy to use
Pattern Name: Electric Circuit Testing Device Style: USB-A and USB-C Meter
Review Image by Be Happy Be Happy
the Klein Tools ET920 USB Power Meter, USB-C and USB-A Digital Meter for Voltage, Current, watts, resistance all work great, just plug it in look at the screen, very easy to use. the graphics are not great but work with no problems, so many review say the USB-C does not work, the USB-C will not work on apple dc power USB-C device do to apple non standard USB-C dc power wiring the klein meter will not work, also the meter has usb input and output that must be correct or meter will not work properly. USB-C works fine with the standard USB-C DC Power wiring. Film and TV Engineering for 25 years. ... show more
Reviewed in the United States on December 8, 2023 by Be Happy Be Happy
    • Useful little device
Pattern Name: Electric Circuit Testing Device Style: USB-A and USB-C Meter
Good for seeing how much power a small device is drawing - e.g. smart phone or tablet.
Reviewed in the United States on July 31, 2025 by Andy Wheatcroft

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