---
product_id: 137280218
title: "Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance"
brand: "klein tools"
price: "€ 125.70"
currency: EUR
in_stock: true
reviews_count: 13
category: "Klein Tools"
url: https://www.desertcart.nl/products/137280218-klein-tools-et920-usb-power-meter-usb-a-and-usb
store_origin: NL
region: Netherlands
---

# Voltage range 3-20V DC Measures capacity & energy up to 1000h Supports USB-A (3A) & USB-C (5A) currents Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance

**Brand:** klein tools
**Price:** € 125.70
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your USB testing game with precision and confidence!

## Quick Answers

- **What is this?** Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance by klein tools
- **How much does it cost?** € 125.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/137280218-klein-tools-et920-usb-power-meter-usb-a-and-usb)

## Best For

- klein tools enthusiasts

## Why This Product

- Trusted klein tools brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Data Recall:** Store and instantly access up to 10 previous readings for quick comparisons and trend spotting.
- • **Extended Data Tracking:** Track and analyze power metrics continuously for up to 1000 hours—never miss a critical insight.
- • **Compact Yet Robust Design:** Credit card-sized powerhouse with a bright LCD screen and durable polymer build—perfect for on-the-go pros.
- • **Built-In Overload Protection:** Safeguard your devices with automatic voltage and current overload detection during testing.
- • **All-in-One USB Power Diagnostics:** Monitor voltage, current, capacity, energy & resistance seamlessly across USB-A & USB-C ports.

## Overview

The Klein Tools ET920 USB Power Meter is a compact, USB-powered device designed for professional-grade testing of USB-A and USB-C ports. It accurately measures voltage (3-20V), current (up to 3A for USB-A and 5A for USB-C), capacity, energy, and resistance, with continuous monitoring capabilities for up to 1000 hours. Featuring data storage for 10 readings and overload detection, it’s an essential tool for troubleshooting and optimizing USB charging performance.

## Description

Shop Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance. Free delivery on eligible orders of £20 or more.

Review: An Impressive and Accurate, Must Have Tool! - This Simple and Logical to use, brilliant bit of kit, allows you to check and confirm the output values (Voltage, Current, Capacity, Energy and Resistance) of USB A and USB C charging ports, whether that be USB Wall Sockets, USB Chargers or Battery Power Banks. The ET920 unit is a little smaller than I expected, being slightly smaller than a Credit Card and if it were just a cm or two longer and wider, it would be ideal but it's not the end of the world. The unit is robustly made, the screen is well lit and all data is clearly legible and accurate, albeit some a tad small. The attached input cables are a little stiff and if the USB Socket is 'the wrong way up' (if that makes sense), you have to twist the cable to be able to view the screen but I'd rather that, than suffer flimsy cables and the pluses outweigh the negatives. It does have its limitations, in that firstly, you cannot cross the cables i.e. USB A Input must be used with USB A Output (not USB C). Secondly and this could be a Major Issue for some users, if the Input Charge stops, due to, for example, a low input voltage value, which would happen if the device attached to the output port has become fully charged, the displayed values are NOT stored on the device and are therefore lost. Conclusion: To date, I'm impresses and Well Pleased with my purchase. It could be better but..... I'll update this review if necessary but to date, Highly Recommended!
Review: Useful addition to toolkit. - A well made useful tool from Klein. It will test the supply from a USB socket, show the supply voltage and how much current is being drawn from the item being charged. Well worth the money, and essential for troubleshooting phone charging issues: already found a dodgy wireless charging pad that was intermittent.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GXZHPVR |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 96,521 in DIY & Tools ( See Top 100 in DIY & Tools ) 137 in Voltage Testers |
| Colour | Orange |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,582) |
| Date First Available | 30 Aug. 2018 |
| Display style | LCD |
| Finish | Brushed |
| Included components | USB Digital Meter, USB-A and USB-C |
| Item Package Quantity | 1 |
| Item Weight | 48.1 g |
| Item model number | ET920 |
| Manufacturer | Klein Tools |
| Material | Polymer |
| Measurement System | Metric |
| Part number | ET920 |
| Pattern | Electric Circuit Testing Device |
| Power source type | USB-powered |
| Product Dimensions | 22.96 x 4.95 x 1.35 cm; 48.19 g |
| Shape | Rectangular |
| Size | One Size |
| Special Features | Fits Any USB-A and USB-C Ports |
| Style | USB-A and USB-C Meter |

## Product Details

- **Brand:** KLEIN TOOLS
- **Colour:** Orange
- **Item weight:** 1.7 Ounces
- **Power source:** USB-powered
- **Style:** USB-A and USB-C Meter

## Images

![Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance - Image 1](https://m.media-amazon.com/images/I/511kXpk-kwL.jpg)
![Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance - Image 2](https://m.media-amazon.com/images/I/61BWiazYhgL.jpg)
![Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance - Image 3](https://m.media-amazon.com/images/I/61ODMD2S37L.jpg)
![Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance - Image 4](https://m.media-amazon.com/images/I/613ARVqcd3L.jpg)
![Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance - Image 5](https://m.media-amazon.com/images/I/51o29JR37VL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Will it test 100w and above, preferably looking for a 150w but 100w would be fine.**
A: Rating is Input 3VDC - 20VDC  and 0A - 3A so it will not test to 100W

**Q: The description says this unit will test "most" usb-c ports. i need to test usb-c 3.1 gen 2 and thunderbolt 3.  are these covered by the et920?**
A: It tests usb under load so with a converter it should test the voltage and amperage.

## Customer Reviews

### ⭐⭐⭐⭐⭐ An Impressive and Accurate, Must Have Tool!
*by S***B on 21 May 2021*

This Simple and Logical to use, brilliant bit of kit, allows you to check and confirm the output values (Voltage, Current, Capacity, Energy and Resistance) of USB A and USB C charging ports, whether that be USB Wall Sockets, USB Chargers or Battery Power Banks. The ET920 unit is a little smaller than I expected, being slightly smaller than a Credit Card and if it were just a cm or two longer and wider, it would be ideal but it's not the end of the world. The unit is robustly made, the screen is well lit and all data is clearly legible and accurate, albeit some a tad small. The attached input cables are a little stiff and if the USB Socket is 'the wrong way up' (if that makes sense), you have to twist the cable to be able to view the screen but I'd rather that, than suffer flimsy cables and the pluses outweigh the negatives. It does have its limitations, in that firstly, you cannot cross the cables i.e. USB A Input must be used with USB A Output (not USB C). Secondly and this could be a Major Issue for some users, if the Input Charge stops, due to, for example, a low input voltage value, which would happen if the device attached to the output port has become fully charged, the displayed values are NOT stored on the device and are therefore lost. Conclusion: To date, I'm impresses and Well Pleased with my purchase. It could be better but..... I'll update this review if necessary but to date, Highly Recommended!

### ⭐⭐⭐⭐⭐ Useful addition to toolkit.
*by S***R on 1 February 2022*

A well made useful tool from Klein. It will test the supply from a USB socket, show the supply voltage and how much current is being drawn from the item being charged. Well worth the money, and essential for troubleshooting phone charging issues: already found a dodgy wireless charging pad that was intermittent.

### ⭐⭐⭐⭐ Nice tester
*by G***D on 21 March 2025*

A well designed USB power meter, it’s nice to have a unit with tails (cables) as it makes it easy to view the screen when plugged into difficult to reach sockets. Build quality seems good and measurement is accurate. I do wish however they included a power calculation and displayed the current load in Watts rather than just amps and volts with Energy.

## Frequently Bought Together

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-16*