240W USB C Adapter Power Meter Tester (2 Pack) - Wattage, Voltage, Amperage LED Digital Display, Type C Male to Female Extension Connector for iPhone 15/16, MacBook, iPad & More USB-C Cables/Devices

Very nice, simple unit to debug power consumption. Small, works well, and seems decently built. I used this to debug power issues with a Macbook, though see that it works for any USB PD device. It allowed me to discover that not all USB C laptop chargers are PD.

Nifty little device to check how much power is being drawn. Gives voltage, current and power. Very compact and the price is great too. Will make a great addition to my tech pouch.

Inaccurate but still fun.These aren't very accurate: when daisy-chained, one shows 5.1V and the other 5.3V.This must be taken into account and limits their usefulness for hunting down voltage drops.Relative accuracy MAY improve a bit at higher voltages, I haven't tried.But they are still handy to keep a general eye on things, and having two is nice.

The media could not be loaded. I wanted to test all of my USB cables and figure out which ones were holding back the performance I needed.I simply wanted to check voltages for charging, not data, or videoHere’s my experience:After using this tool for a couple of months, I was pleasantly surprised. It has a super small form factor, feels well-built, and has proven to be accurate. I've tested many cables and I'm happy to report that it hasn’t limited power throughput at all.🔬 Testing ParametersDevice: USB tester connected to several cablesPower Source: Ecoflow Delta Pro 3 (4500Wh battery backup)Scenario: Previously measured about 95W charging output to a laptop from the Ecoflow panelPROS:✅ Super small and portable: Easy to carry and use anywhere✅ Very bright display: Easy to read in most lighting conditions✅ Scrolls through key metrics: Voltage, wattage, and amperage✅ Solid connectors: Good physical build quality✅ Minimal impedance: No noticeable restriction on power flowCONS:❌ Fast scrolling: Data points cycle quickly, making it hard to catch one metric for very long🔎 CONCLUSIONI would highly recommend this tester if you're looking for simple measurements of power throughput. After plugging the same cable into this inline tester, I saw similar wattages as without it (as shown in the video and pictures). Honestly, I was expecting more impedance at higher wattages, but even after leaving the tester in place for a while, there was no noticeable temperature rise or performance drop.This has earned a place in my laptop bag!

The LED display is clear and easy to read, even at a quick glance. I haven’t had a single issue with it—it just works exactly as expected. If you need a reliable way to monitor your power output, this is a great tool to have on hand.

I recently got my hands on this excellent USB-C voltage meter tester adapter, and it's been incredibly useful. The Power Digital LED Display Design makes monitoring wattage a breeze, ensuring my devices are always in good shape. The 240W PD Fast Charging & 40 Gbps Data Transfer guarantees my MacBook and other USB-C devices are always powered up and running smoothly. The Universal Compatibility is impressive, working seamlessly with my iPhone 15. However, I've noticed a slight misalignment with some of my more expensive devices, occasionally showing a mismatch of greater than 5 watts. Overall, this 2-pack USB-C tester power meter adapter has it's uses for a quick cheap way to see how much power your device is consuming but don't lean on its accuracy too heavily. I would recommend if you need a quick cheap way to visualize charging speeds.

Why did you pick this product vs others?:These little thing are awesome, I use them to see how much power my USB charger is throwing at the phone and so far it's giving me a heads up to potential issues with my charger so I know when to look for a new one.

These are working well and seem accurate.