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Compact USB-C power meter with digital display and male-to-female connectors

USB-C Tester 4-30V 0-12A Power Meter

SKU CH-H33T-SVBGY

Measures USB-C voltage up to 30 V, current up to 12 A and power up to 360 W while logging capacity, energy and time

  • Team affiliation1 Piece
  • Key featuresUSB C Tester, Battery Powered, false
  • Monitors voltage 4-30V and current 0-12A in real time
  • Supports PD 2.0/3.0, QC 2.0/3.0, PPS and more fast-charge protocols
  • Logs energy up to 99999 mAh and 99999 Wh with memory protection
  • Handles continuous 12 A discharge for power-bank capacity testing
  • Button cycles screens, rotates display and clears data for new tests

USB-C Power Meter for Charger Testing

This digital tester connects between a USB-C charger and a device to monitor voltage from 4 to 30V and current up to 12A. It displays real-time power, temperature, and accumulated energy data. The tool is built for technicians and enthusiasts verifying charger, cable, or power bank output performance.

Inline USB-C Monitor with Protocol Detection

The unit sits in-line on a USB-C connection and requires no external power source to operate. It automatically identifies supported fast-charging protocols such as PD, PPS, QC, FCP, SCP, AFC, and VOOC variants. A single button cycles through measurement screens, rotates the display, or resets cumulative counters for a fresh test session.

Upgrades Basic Voltage-Only Checkers

Unlike simple voltage indicators, this meter logs capacity up to 99999mAh and energy up to 99999Wh across sessions lasting up to 99 hours. Data remains stored if the connection is accidentally interrupted. The jump is worth it when you need to confirm actual delivered power up to 360W or diagnose cable voltage drop under load.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 73% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameSEOJANW
More details
Team affiliation1 Piece

Questions about this item

What is the highest continuous current the tester can handle without overheating?

The unit is built with high-current terminals rated for sustained testing up to 12A.

How hot or noisy does the meter get during long charging sessions?

It has no fan or active cooling, so it runs silently and its temperature reading reflects the cable or charger, not the tester itself.

Does the tester need its own battery or external power to operate?

No, it draws operating power directly from the USB-C connection between the charger and the device under test.

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