Plugable USB C Power Meter Tester for Monitoring USB-C Connections up to 240W - Digital Multimeter Tester for USB-C Cables, Laptops, Phones and Chargers
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Plugable USB C Power Meter Tester for Monitoring USB-C Connections up to 240W - Digital Multimeter Tester for USB-C Cables, Laptops, Phones and Chargers

|11 ratings

Key item features

  • Real-time Monitoring: This USB-C tester monitors power and charging up to 240W, measuring voltage and amperage, and visualizing the directional flow of electrical current in real-time.
  • Enhanced Display: Features an updated OLED display for brighter, easier reading, and includes an orientation button to flip the screen 180 degrees for convenience.
  • Bidirectional Connectivity: The power meter can be connected in either orientation, supporting USB Extended Power Range (EPR) voltage from 4.5V-50V and 50mA-6.5A operating range.
  • Broad Compatibility: Functions as a data and power quality meter, allowing USB data pass-through, USB-C Alt Mode video, and USB-C charging with various accessories, excluding Thunderbolt 3 devices.
  • Compact Durability: Small, flash drive-sized design fits most phones and tablets without case removal, featuring strengthened USB-C connections for robust, on-the-go use.
  • Versatile Applications: Useful for monitoring charge information between hosts and chargers or docking stations, and measuring power draw of bus-powered accessories.
  • Technical Specifications: Supports USB-PD R3.1 Extended Power Range (101W-240W) and all USB data standards from 1.1 through 3.1 Gen 2.
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Specs

Brand, PlugableCompatibility, USB-C host system like a laptop, tablet, or cell phoneConnection, USB CColor, BlackMaterial, CottonWorks with, USB-C laptop, USB-C tablet, USB-C cell phone, USB-C charger

About this item

Product details

For a multimeter, the Plugable USB-C Amperage and Voltage Tester (USBC-VAMETER3) manages to fit a lot of useful features into a sturdy little package. About the size of a USB flash drive, this bidirectional USB tester allows for full USB data passthrough while it monitors USB-C power and charging, measures voltage and amperage, even visualizes the directional flow of electrical current–all in real time.
Connect the USBC-VAMETER3 inline between a USB-C host system like a laptop, tablet, or cell phone and a charger to use it as a USB voltage meter or power consumption meter. An updated OLED screen means a brighter and easier-to-read display in any lighting conditions, and a new orientation button lets you flip the screen with a click.

How it works:
This meter is a transparent interposer–it should not interfere with the USB data (1.1 through 3.1 Gen 2), USB-C Alternate Mode video, or USB-C charging. The meter can be used in-line with USB-C docking stations, chargers, and other USB-C accessories. The meter is able to achieve this without interfering with normal USB-C operation as it only taps into the power (VBUS) and ground connections to measure values and leaves the data lines untouched.

Common uses:
Connecting between a USB-C host system like a laptop, tablet, or cell phone and a charger to monitor charge information.
Connecting between a USB-C host and docking station to monitor charge information.
Connecting between a USB-C host system and a USB-C bus powered accessory like an external hard drive, flash drive, etc to measure power draw of a device.
Testing for USB-C port spec compliance such as a VBUS hot condition, voltage drop under load, etc.

Important notes:
This meter is not meant to replace professional USB-C test equipment, it is designed for quick/easy measurements for users of any skill level.
Not compatible with Intel Thunderbolt 3 devices.

Specifications:
Meter is bidirectional and can be connected in any direction
Supports 4.5-50V, 50mA-6.5A operating range
Support USB-PD R3.1 Extended Power Range (101W-240W)
Supports all USB data (1.1 through 3.1 Gen 2)

Key Features and Benefits:

  • At a Glance - USB C Tester monitors USB-C power and charging up to 240W. Measure voltage and amperage. Visualize the directional flow of electrical current. Updated OLED display is brighter and easier to read. New orientation button lets you flip the screen 180 degrees
  • Bidirectional - USB power meter can be connected in either orientation, allowing for the full range of USB Extended Power Range (EPR) voltage from 5 to 48V (4.5V-50V, 50mA-6.5A operating range)
  • Broad USB Support - Used as a data and power quality meter, device allows USB data pass through, USB-C Alt Mode video, USB-C charging. Use USB-C tester with USB-C docking stations, chargers, accessories, etc. Not compatible with Thunderbolt 3 devices
  • Small and Tough - Small enough to go anywhere you need a USB C voltage meter. Even fits most phones and tablets without removing protective case. Strengthened USB-C connections ensure it's sturdy enough to be your go-to USB C power tester
  • 2 Year Warranty - We love our Plugable products, and hope you will too. All of our products are backed with a 2-year limited parts and labor warranty as well as Seattle-based email support
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Brand

Plugable

Compatibility

USB-C host system like a laptop, tablet, or cell phone

Connection

USB C

Color

Black

Warranty

Warranty information

2 Year Warranty - We love our Plugable products, and hope you will too. All of our products are backed with a 2-year limited parts and labor warranty as well as Seattle-based email support

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4.8 out of 5 stars
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11 ratings9 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars82% (9)
  2. 4 stars18% (2)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star0% (0)
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Showing 1-3 of 9 reviews

Sep 9, 2026
Reviewer name: Alexandria
Top Reviewer
Sold and shipped byPlugable
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Works perfectly, highly accurate!

Exactly what I needed to keep track of USB-C connections and power flow. It's truly plug-and-play, lightweight, and gives precise readings every time.

Helpful?3RFT95YPRDCK1298615978
Jan 26, 2026
Reviewer name: Deborah
Item details
Color: Black
Sold byPlugableDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Deb e

Great product

Helpful?3RFT95YPRDCK1298615978
Dec 9, 2025
Reviewer name: Adrian
Item details
Color: Black
Sold byPlugableDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

carry it everywhere

high quality. Simple and easy to use. I started carrying it in my backpack with me everywhere so I can check cables and chargers to see where the bottlenecks are. Perfect for travel use

Incentivized Review
Helpful?3RFT95YPRDCK1298615978
Current price is $37.99
Price when purchased online
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