---
product_id: 71879138
title: "Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance"
brand: "klein tools"
price: "¥6466"
currency: JPY
in_stock: false
reviews_count: 13
url: https://www.desertcart.jp/products/71879138-klein-tools-et900-usb-power-meter-usb-a-digital-meter
store_origin: JP
region: Japan
---

# 3-20V DC voltage range Hi-res LCD for low-light clarity Measures capacity & energy up to 1000 hrs Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance

**Brand:** klein tools
**Price:** ¥6466
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power up your USB diagnostics with precision and style!

## Quick Answers

- **What is this?** Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance by klein tools
- **How much does it cost?** ¥6466 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/71879138-klein-tools-et900-usb-power-meter-usb-a-digital-meter)

## 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

- • **Data at Your Fingertips:** Store and recall up to 10 readings to track and compare power metrics over time.
- • **Built for Real-World Use:** Durable cable and overload detection ensure reliable performance in tough, hard-to-reach environments.
- • **Clear Visibility Anytime:** Hi-resolution LCD screen guarantees easy reading even in dimly lit workspaces.
- • **Precision Power Insights:** Continuously monitor voltage, current, capacity, energy, and resistance with unmatched accuracy.
- • **Universal USB-A Compatibility:** Test standard USB-A and Qualcomm Quick Charge ports effortlessly for all your devices.

## Overview

The Klein Tools ET900 USB Power Meter is a professional-grade digital meter designed to measure voltage (3-20V DC), current (0.05-3A), capacity, energy, and resistance on USB-A ports, including Qualcomm Quick Charge. Featuring a durable cable, hi-res LCD for low-light environments, and the ability to store up to 10 readings, it empowers tech-savvy professionals to monitor USB power usage accurately and efficiently.

## Description

These Double-Fluted Step Drill Bits provide faster cutting and drilling than single flute bits. The easy-to-read step markings and targets save time when drilling holes. Thick 3/8-Inch hex shank provides a firm, positive grip and won't spin out in the drill. 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.

Review: Works well! - I bought this unit as I was curious as to exactly how much power various USB devices actually require... things like WYZE cameras, cell phones when charging, etc. The unit did not disappoint, it provided me with all the info I needed.
Review: Versatile USB Power Meter: Accurate Measurements with Enhanced Features, but with One Minor Quirk - 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

## Features

- 3 to 20V DC; Current: 0.05 to 3A
- Continuously monitor up to 1000 hours of voltage, current, capacity/charge delivered, energy, and resistance (calculated)
- Tests most common standard USB-A ports, including Qualcomm Quick Charge ports
- Store and recall up to 10 readings
- Voltage and current overload detection
- Hi-resolution LCD for clear visibility in environments with low ambient lighting
- Durable cable to allow easy access to hard-to-reach ports

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FMHHS43 |
| Best Sellers Rank | #20,690 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Industrial Power Meters |
| Brand | KLEIN TOOLS |
| Color | orange |
| Date First Available | July 16, 2018 |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00092644691386 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.12 ounces |
| Item dimensions L x W x H | 8.35 x 1.27 x 0.55 inches |
| Item model number | ET900 |
| Manufacturer | Klein Tools |
| Measurement Type | Voltmeter, Ammeter, Ohmmeter |
| Min. Operating Voltage | 3 |
| Power Source | Powered By Usb |
| Product Dimensions | 8.35 x 1.27 x 0.55 inches |
| Specification Met | Likely Meets Various Industry Standards and Certifications, Including Fcc, Ce, and Ul |
| Style | USB-A Meter |
| UPC | 092644691386 |
| Upper Temperature Rating | 85 Degrees Celsius |

## Product Details

- **Brand:** KLEIN TOOLS
- **Color:** orange
- **Item Weight:** 0.07 Pounds
- **Power Source:** Powered By Usb
- **Style:** USB-A Meter

## Images

![Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance - Image 1](https://m.media-amazon.com/images/I/51Hp2DWB3LL.jpg)
![Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance - Image 2](https://m.media-amazon.com/images/I/612m4OOTUnL.jpg)
![Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance - Image 3](https://m.media-amazon.com/images/I/61ZLBatS9dL.jpg)
![Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance - Image 4](https://m.media-amazon.com/images/I/615rQGFDvKL.jpg)
![Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance - Image 5](https://m.media-amazon.com/images/I/41DWaSee8YL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well!
*by R***S on February 5, 2026*

I bought this unit as I was curious as to exactly how much power various USB devices actually require... things like WYZE cameras, cell phones when charging, etc. The unit did not disappoint, it provided me with all the info I needed.

### ⭐⭐⭐⭐⭐ Versatile USB Power Meter: Accurate Measurements with Enhanced Features, but with One Minor Quirk
*by S***R on October 19, 2023*

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

### ⭐⭐⭐⭐ Very useful meter
*by C***K on February 3, 2026*

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.

## Frequently Bought Together

- Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance
- Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles
- Klein Tools NCVT2P Dual Range, Non-Contact Voltage Tester, 12-1000V AC, Visual and Audible Indicators, Auto Power Off

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/71879138-klein-tools-et900-usb-power-meter-usb-a-digital-meter](https://www.desertcart.jp/products/71879138-klein-tools-et900-usb-power-meter-usb-a-digital-meter)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-20*