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Two compact USB-C power meters with LCD screens, rectangular matte finish, 3.5 by 3.5 by 1 inches

diymore USB-C Power Meter Tester 240W 40V 12A 2PCS

SKU CH-V8AP-50GAF

Measures USB-C voltage up to 40V and current up to 12A with PD3.1 protocol testing to 240W in a two-piece set

  • Team affiliation2 Piece
  • Key featuresCorded Electric, false
  • Overall height3.5 L x 3.5 W x 1 H inches
  • Overall width3.5 L x 3.5 W x 1 H inches
  • Overall length3.5 L x 3.5 W x 1 H inches
  • Measures up to 240W power delivery for high-wattage charging
  • Tests 40V and 12A maximum for comprehensive electrical analysis
  • Supports PD3.1 protocol with fixed voltage modes 5V, 9V, 12V, 15V, 20V, 28V
  • Compatible with PD, QC2.0, QC3.0, QC4.0 and MTK fast-charge standards
  • LCD colour display shows real-time voltage, current and power readings

USB-C Power Meter Tester 240W

This USB-C power meter tester measures voltage, current, and power on Type-C connections up to 240W and 12A. It supports PD3.1 protocol testing and multiple fast-charge standards including QC2.0, QC3.0, QC4.0, and MTK. The LCD display provides real-time readings with colour-coded values. Two units are included for simultaneous monitoring.

Engineers and DIY testers debugging USB-C power

Suitable for developers validating PD3.1 implementations or hobbyists checking charger output and cable performance. It covers fixed voltage modes of 5V, 9V, 12V, 15V, 20V, and 28V within a 4-30V range. Buyers needing AC mains analysis or wireless charging verification should look elsewhere.

Plug inline between source

The corded-electric design requires no battery or driver installation; the screen activates when power is present. Ensure the test cable and devices support the target protocol, otherwise the meter will show only baseline voltage. Avoid exceeding the 36V or 12A limits to prevent damage.

How it compares

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

Price $41.99
Pricier than about 66% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameDiymore
Size & build
Overall height3.5 L x 3.5 W x 1 H inches
Overall width3.5 L x 3.5 W x 1 H inches
Overall length3.5 L x 3.5 W x 1 H inches
More details
Team affiliation2 Piece

Questions about this item

Which fast-charging protocols must my charger already support for the PD3.1 tester to trigger and display negotiated power?

The tester triggers PD2.0, PD3.0, PPS, QC2.0, QC3.0, FCP, SCP, AFC, PE, DASH VOOC and SuperVooc, so the charger needs to implement at least one of those standards.

Can I keep using my older USB-A chargers and cables while testing with the USB-C meter?

The meter has a USB-C interface only; USB-A sources require a USB-A-to-USB-C adapter or cable, and the tester will then measure whatever protocol the adapter negotiates.

After connecting the meter between charger and device, what readings confirm the 240W path is active?

The LCD should show a negotiated fixed voltage of 5V, 9V, 12V, 15V, 20V or 28V, current up to 12A and a power value reaching 240W.

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