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Compact USB-C power meter with LCD screen, 4 by 3.5 by 1.2 inches

diymore USB-C Power Meter Tester 240W 40V 12A

SKU CH-1HA9-EWPZC

Measures USB-C voltage up to 40V, current up to 12A and power up to 240W with PD3.1 protocol detection on an LCD screen

  • Team affiliation1 Piece
  • Key featuresUsb-c Power Meter Tester, User Manual, Usb-c, false
  • Overall height4 L x 3.5 W x 1.2 H inches
  • Overall width4 L x 3.5 W x 1.2 H inches
  • Overall length4 L x 3.5 W x 1.2 H inches
  • Measures up to 240W for high-power USB-C charging
  • Tests voltage from 3.3V to 40V and current up to 12A
  • Bright LCD shows real-time voltage, current, power and protocol data
  • Detects fast-charge protocols including PD3.1, QC4.0 and PPS automatically
  • Compact 4 × 3.5 × 1.2 inch design fits in a tool bag

USB-C Power Meter Tester 240W

The diymore USB-C Power Meter Tester measures voltage from 3.3 V to 40 V and current up to 12 A, displaying real-time power up to 240 W on a colour LCD. It supports PD 3.1, QC 2.0 through 4.0 and other common fast-charge protocols for comprehensive charging analysis.

Compatibility check before ordering

Ensure the device under test uses a USB-C port and operates within the 3.3 V to 40 V range. The tester draws power from the measured circuit so no external supply is needed, but verify that your cables and chargers can handle the expected current up to 12 A.

Replaces basic USB meters and multimeters

This unit upgrades from simple voltage-only testers by adding protocol detection, ripple measurement and energy capacity logging in one compact tool. The jump is worthwhile when you need to validate PD 3.1 negotiation, compare cable performance or troubleshoot fast-charge handshake issues.

How it compares

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

Price $30.99
Typical for this category: the median of 971 items is $30.99.

Specifications

Product
Brand nameDiymore
Size & build
Overall height4 L x 3.5 W x 1.2 H inches
Overall width4 L x 3.5 W x 1.2 H inches
Overall length4 L x 3.5 W x 1.2 H inches
More details
Team affiliation1 Piece

Questions about this item

Does the diymore USB-C Power Meter Tester include a cable or do I need to supply my own?

The package contains one USB-C tester unit and a user manual; a USB-C cable is not included and must be provided separately.

Which voltage and current range should I choose for testing a 240 W charger?

Select the 3.3 V to 36 V and 0 A to 12 A range, which supports up to 240 W power measurement.

What does the 240 W rating mean when I connect a laptop charger?

It indicates the maximum power the meter can measure — up to 40 V and 12 A simultaneously — so a 240 W charger will be read within its limits.

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