---
product_id: 709434956
title: "Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance"
brand: "klein tools"
price: "0.23 OMR"
currency: OMR
in_stock: false
reviews_count: 5
url: https://www.desertcart.com.om/products/709434956-klein-tools-et900-usb-power-meter-usb-a-digital-meter
store_origin: OM
region: Oman
---

# 3-20V DC voltage range Stores & recalls 10 readings 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:** 0.23 OMR
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power up your precision — never miss a charge detail again!

## 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?** 0.23 OMR with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/709434956-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

- • **Rugged & Readable:** Durable cable and hi-res LCD screen deliver clear visibility even in low-light, hard-to-reach environments.
- • **Battery-Free Operation:** Powered directly by the USB source—no batteries needed, ensuring uninterrupted, eco-friendly use.
- • **Effortless Data Recall:** Store and instantly access up to 10 readings to track performance trends and troubleshoot efficiently.
- • **Precision Power Insights:** Continuously monitor voltage, current, capacity, energy, and resistance with professional-grade accuracy.
- • **Universal USB-A Compatibility:** Seamlessly test standard USB-A and Qualcomm Quick Charge ports for versatile device support.

## Overview

The Klein Tools ET900 USB Power Meter is a professional-grade digital tester designed for USB-A ports, including Qualcomm Quick Charge. It measures voltage (3-20V), current (0.05-3A), capacity, energy, and resistance continuously for up to 1000 hours. With no battery required, a high-resolution LCD, and the ability to store 10 readings, it offers reliable, on-the-go diagnostics for tech-savvy professionals demanding accuracy and durability.

## Description

The Klein Tools ET900 is a USB digital meter for common standard USB-A (Type A) ports including Qualcomm Quick Charge 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 port that has 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.

Review: Bueno y útil. - Bueno y útil, idénticas medidas de voltaje que la Power Z, recomendado.
Review: Non si può cambiare la visualizzazione delle informazioni - La grandezza delle lettere sul display richiede gli occhiali se hai più di 50 anni

## 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 |
| Brand Name | KLEIN TOOLS |
| Colour | Multi |
| Customer Reviews | 4.6 out of 5 stars 332 Reviews |
| Global Trade Identification Number | 00092644691386 |
| Included Components | Klein Tools - 86522 |
| Item Dimensions | 21.2 x 3.2 x 1.4 Centimeters |
| Item Height | 0.55 Inches |
| Item Length | 2.84 Inches |
| Item Type Name | Klein Tools - 86522 |
| Item Weight | 32 g |
| Item Width | 1.25 Inches |
| Manufacturer | Klein Tools |
| Measurement Type | Voltmeter, Ammeter, Ohmmeter |
| Minimum Operating Voltage | 3 |
| Model Number | ET900 |
| Power Source Type | Powered By Usb |
| Specification Met | Likely Meets Various Industry Standards and Certifications, Including Fcc, Ce, and Ul |
| Style Name | USB-A Meter |
| UPC | 092644691386 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 85 Degrees Celsius |

## Product Details

- **Brand:** KLEIN TOOLS
- **Power Source:** Powered By Usb
- **Style:** USB-A Meter
- **Colour:** Multi
- **Item Weight:** 32 g

## 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/41DWaSee8YL.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/51Hp2DWB3LL.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/612m4OOTUnL.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/61GqZY16srL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bueno y útil.
*by L***S on 1 October 2021*

Bueno y útil, idénticas medidas de voltaje que la Power Z, recomendado.

### ⭐⭐⭐ Non si può cambiare la visualizzazione delle informazioni
*by L***O on 1 January 2021*

La grandezza delle lettere sul display richiede gli occhiali se hai più di 50 anni

### ⭐⭐⭐⭐⭐ Facilidad de uso, informacion concisa y precisa.
*by M***. on 4 April 2025*

Muy buena herramienta

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-06*