--- product_id: 137280218 title: "ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance" brand: "klein tools" price: "₩162010" currency: KRW in_stock: true reviews_count: 13 category: "Klein Tools" url: https://www.desertcart.kr/products/137280218-et920-usb-power-meter-usb-a-and-usb-c-digital store_origin: KR region: South Korea --- # 3-20V DC voltage range Stores 10 readings 0.05-5A current measurement ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance **Brand:** klein tools **Price:** ₩162010 **Availability:** ✅ In Stock ## Summary > 🔌 Power up your diagnostics with Klein’s ultimate USB meter! ## Quick Answers - **What is this?** 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?** ₩162010 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/137280218-et920-usb-power-meter-usb-a-and-usb-c-digital) ## 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 - • **Safety First:** Built-in overload detection protects your devices and power sources during testing. - • **Compact & Robust:** Credit card-sized, rugged design fits seamlessly into any professional toolkit. - • **Smart Data Recall:** Instantly access and compare up to 10 stored readings for smarter troubleshooting. - • **Extended Monitoring:** Track performance continuously for up to 1000 hours—never miss a critical data point. - • **Precision Power Insights:** Accurately measures voltage, current, capacity, energy, and resistance for USB-A & USB-C ports. ## Overview The Klein Tools ET920 USB Power Meter is a compact, dual USB-A and USB-C digital tester designed for professionals who demand precise voltage (3-20V) and current (up to 5A) measurements. It continuously monitors key electrical parameters including capacity, energy, and resistance for up to 1000 hours, stores up to 10 readings for easy comparison, and features overload detection to safeguard your devices. Engineered for durability and accuracy, 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 | | Best Sellers Rank | 58,162 in DIY & Tools ( See Top 100 in DIY & Tools ) 77 in Voltage Testers | | Brand | KLEIN TOOLS | | Colour | Orange | | Country Of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (1,593) | | Global Trade Identification Number | 00092644691669 | | Included Components | USB Digital Meter, USB-A and USB-C | | Item Dimensions | 23 x 5 x 1.3 centimetres | | Item Length | 2.96 Inches | | Item Type Name | USB Tester | | Item Weight | 1.7 Ounces | | Item Width | 1.96 Inches | | Manufacturer | Klein Tools | | Maximum Operating Voltage | 20 Volts | | Measurement Type | USB Power Meter | | Minimum Operating Voltage | 3 Volts (DC) | | Model Number | ET920 | | Power Source | Corded Electric | | Style Name | USB-A and USB-C Meter | | UPC | 092644691669 | | Unit Count | 1.0 count | | Upper Temperature Rating | 60 Degrees Celsius | ## Product Details - **Brand:** KLEIN TOOLS - **Colour:** Orange - **Item weight:** 1.7 Ounces - **Power source:** Corded Electric - **Style:** USB-A and USB-C Meter ## Images ![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) ## 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 - Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance - Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester - Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles --- ## 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.kr/products/137280218-et920-usb-power-meter-usb-a-and-usb-c-digital](https://www.desertcart.kr/products/137280218-et920-usb-power-meter-usb-a-and-usb-c-digital) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-04-29*