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Compact USB-C power meter with 1.77 inch TFT screen and programmable load module

WUQ

WUQ USB 3.1 Power Meter CT3+SM-LD-00 29V 6A PD QC PPS Lua

SKU CH-MPMC-8W3M6

USB 3.1 power meter measuring 0–26 V at 0–6 A with 4.5-digit accuracy, integrated Lua interpreter and 12 Mbyte script storage, plus 1.77" 128×160 TFT display

  • TypeTest Instrument & Gauge Parts
  • Lua interpreter with 12 MB storage enables custom test automation
  • 1 % gain error on 0–26 V and 0–6 A measurements
  • 77″ 128×160 TFT shows 4.5-digit voltage and current readings
  • PC software logs at 1000 sps with 3.2 Msps ripple viewer and PD listener
  • Optional SM-LD-00 load module adds 0–26 V, 6.7 A, 65 W constant-current and constant-power modes

USB 3.1 Power Meter with Lua Interpreter

The WUQ CT3+SM-LD-00 is a USB 3.1 tester and digital multimeter that measures voltage from 0 to 26V and current up to 6A. It integrates a Lua interpreter with 12Mbytes of internal memory for user scripts that can run on boot. The 128 by 160 pixel 1.77 inch TFT shows 4.5 digit readings with a maximum gain error of 0.1 percent for both voltage and current.

Build Integration and Expansion

The meter supports PD 2.0 and 3.0 with PPS, QC 2.0, 3.0 and 4.0, plus Huawei SCP, SSCP, FCP, Samsung AFC, VOOC and Super VOOC 65W triggers for charger testing. An optional SM-LD-00 electronic load module adds constant-current and constant-power modes up to 6.7A and 65W continuous, digitally controlled from the meter or PC software. PC software enables data logging at 1000sps, Lua program downloading, a VBUS ripple viewer at 3.2Msps and a PD listener, all usable simultaneously.

Suitability and Limits

This instrument suits engineers and technicians who need programmable USB power analysis, fast-charge protocol triggering and automated test scripting in a single device. Buyers who require measurement beyond 29V or 6A without the load module, or who need a form factor not described here, should look at other solutions.

Highlights

  • Lua interpreter with 12 MB storage enables custom test automation
  • 1 % gain error on 0–26 V and 0–6 A measurements
  • 77″ 128×160 TFT shows 4.5-digit voltage and current readings
  • PC software logs at 1000 sps with 3.2 Msps ripple viewer and PD listener
  • Optional SM-LD-00 load module adds 0–26 V, 6.7 A, 65 W constant-current and constant-power modes

Specifications

TypeTest Instrument & Gauge Parts

Questions about this item

What is the maximum continuous power the electronic load module can dissipate?

The optional SM-LD-00 electronic load module is rated for a maximum of 100W in continuous operation.

How much heat and noise does the meter itself produce during all-day logging?

The meter has no fan or active cooling; it draws only the small current needed for its 1.77 inch TFT and measurement circuitry, so heat and audible noise are negligible.

Which host interface must my computer provide to run the PC software and power the meter?

The unit connects through a USB 3.1 port that supplies up to 29V and 6A, so the host must support USB Power Delivery 2.0 or 3.0 with PPS.

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