Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance
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Availability:
In Stock.
Arrives
Sunday, Nov 15
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At a glance
- Condition
- New
- Pattern
- Electric Circuit Testing Device
- Style
- USB-A and USB-C Meter
- Model
- ET920
- Dimensions
- 9.04 x 1.95 x 0.53 in
- Weight
- 1.76 oz
- Color
- Orange
- In the box
- USB Digital MeterUSB-A and USB-C
- Warranty
- 1 year manufacturer
- Works with
- USB-A devices, USB-C devices, including Qualcomm Quick Charge devices
Features 7
- 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.
Specs 20
| Brand | KLEIN TOOLS |
|---|---|
| Power Source | Usb-port Powered |
| Style | USB-A and USB-C Meter |
| Color | Orange |
| Item Weight | 1.76 ounces |
| Minimum Operating Voltage | 3 V DC |
| Upper Temperature Rating | 60 °C |
| Measurement Type | USB Power Meter |
| Style Name | USB-A and USB-C Meter |
| Item Dimensions | 9.04 x 1.95 x 0.53 inches |
| Specification Met | Meets Relevant Industry Standards |
| Brand Name | KLEIN TOOLS |
| Model | ET920 |
| Unit Count | 1 Count |
| UPC | 092644691669 |
| Number of Items | 1 |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 69 |
| Item Type Name | Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance |
| Part Number | ET920 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Nov 15
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Very helpful.
Pattern Name: Electric Circuit Testing Device
Style: USB-A and USB-C Meter
Very good product.
Reviewed in the United States on September 21, 2026 by Juan F. Guerrero
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
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Reviewed in the United States on October 19, 2023 by Sam Fisher
Very useful meter
Pattern Name: Electric Circuit Testing Device
Style: USB-A and USB-C Meter
Great meter. Very useful to assess charge rates etc.. “Input” and “Output” are clearly marked, but i wish it could be used in both directions. The “Input” is the male cable so it can only connect to a voltage source that has a female plug. If the source has a built-in male USB cable, then this wont work without an adapter. Also you can’t mix USB sources - like USB-C input to USB-A output. There are adapter cables to solve these problems, but it would be really useful if the meter had this flexibility. Overall, I”m very happy with it.
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Reviewed in the United States on February 3, 2026 by Chuck
Another great Klein tool!
Pattern Name: Electric Circuit Testing Device
Style: USB-A and USB-C Meter
Ever want to know exactly how much power your wall box is giving you or your cord this is your device take the guesswork out of it identify the factory cord that came with your device by checking the power level
Reviewed in the United States on September 6, 2026 by pman
It’s a great gadget to have
Pattern Name: Electric Circuit Testing Device
Style: USB-A and USB-C Meter
I used more than 3 USB power meters in the past. The Klein USB power meter is the best of all. Excellent build quality, large screen, so much easier to read. I’m surprised to see a memory feature to store past results. One thing to note is that the USB-C and USB-A ports won’t cross over. Must use USB-C to USB-C, and A to A. The max current it can handle is 100W. Therefore it won’t be able to measure the 140W charger from the MacBook Pro 16” with M1 chip.
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Reviewed in the United States on July 3, 2022 by Tools. Electro. DIY
get what you need
Pattern Name: Electric Circuit Testing Device
Style: USB-A and USB-C Meter
excellent product
Reviewed in the United States on October 8, 2026 by EUGENE R. DAVENPORT
Works
Pattern Name: Electric Circuit Testing Device
Style: USB-A and USB-C Meter
Works good
Reviewed in the United States on September 6, 2026 by Witchy Lady
EDITED: USB-C doesn't work
Pattern Name: Electric Circuit Testing Device
Style: USB-A and USB-C Meter
Edited four days after last edit: My replacement unit arrived. And it also will not read on the USB-C side. Again I've tried multiple different known-good power sources. Tested these same sources with other meters. Tried changing orientation of connection. Nope. The USB-C side died in the first one, and never worked in my second unit. Too bad. Lots of promise. Now down to a single star since it simply doesn't do what it is supposed to do. Edited a week later to reduce to two stars from four: The USB-C side input has failed after using to test about 20 different times. The USB-A side continues to work, but the USB-C side just remains dark. I've tried from multiple different known-good USB-C power sources. Nope. It is dead on that side. Original review with four stars: I didn't have anything to measure USB-C, so I purchased this mostly due to brand recognition. It is rugged and will likely last a long while. Even the cords are super tough and all ports and plugs seem high-quality. It seems accurate enough as compared to some of my other meters. The display is just too small for me. The tiny little text is tough to read for these old eyes. And the biggest miss for me is the lack of a Wattage reading. Of course I can do the math myself. But when both the V and the A are moving in real time, that math becomes rough! I'd much rather have a real-time Wattage reading so I know truly how much power is being passed. The memory feature seems like an odd addition. A button almost the size of the screen is dedicated to being able to save readings? I guess it could come in handy in some situations, but I think I'd rather just write down the readings than wonder which memory bank it is saved in.
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Reviewed in the United States on September 21, 2022 by Darell D.