--- product_id: 71879138 title: "Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance" brand: "klein tools" price: "£43.29" currency: GBP in_stock: true category: "Klein Tools" url: https://www.desertcart.co.uk/products/71879138-klein-tools-et900-usb-power-meter-usb-a-digital-meter store_origin: GB region: United Kingdom --- # 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:** £43.29 **Availability:** ✅ In 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?** £43.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/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. ## 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 | #13,859 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Industrial Power Meters | | Brand Name | KLEIN TOOLS | | Color | orange | | Compatible Devices | Devices with USB-A ports | | Customer Reviews | 4.7 4.7 out of 5 stars (348) | | Global Trade Identification Number | 00092644691386 | | Included Components | USB Digital Meter, USB-A (Type A) | | Item Dimensions | 8.35 x 1.27 x 0.55 inches | | Item Type Name | Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, Capacity, Energy Resistance | | Item Weight | 1.12 ounces | | Manufacturer | Klein Tools | | Measurement Type | Voltmeter, Ammeter, Ohmmeter | | Minimum Operating Voltage | 3 | | Model | ET900 | | Number of Items | 1 | | Part Number | ET900 | | Power Source | 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 Count | | Upper Temperature Rating | 85 °C | | Warranty Description | 1 year manufacturer | ## Product Details - **Brand:** KLEIN TOOLS - **Color:** orange - **Item Weight:** 1.12 ounces - **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/317Mz9UawxL.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/41uSMMXPl7L.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/51qixdxKBNL.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/51bFKCrXgKL.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/31VUZA425VL.jpg) ## Available Options This product comes in different **Pattern, Style** options. ## 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.co.uk/products/71879138-klein-tools-et900-usb-power-meter-usb-a-digital-meter](https://www.desertcart.co.uk/products/71879138-klein-tools-et900-usb-power-meter-usb-a-digital-meter) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-11-07*