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Compact USB-C multimeter with 1.44in LCD, Type-C and Micro USB ports, four buttons, matte black finish

YOJOCK USB C Tester Multimeter 1.44in LCD 4.5-24.0V 8.0A

SKU CH-RN66-EAY2Y

Measures USB voltage, current, power and cable impedance on a 1.44-inch rotating LCD screen

  • FeaturesUSB Tester, Corded Electric, false
  • Weight0.04 kilograms
  • Sports Team1 Piece
  • TypeVoltmeter, Ammeter, Multimeter
  • Measures voltage from 4.5 to 24.0 volts for accurate monitoring
  • Tracks current up to 8.0 amps to verify charger output
  • 44 inch LCD rotates 360 degrees for easy reading at any angle
  • Tests power bank capacity and energy with long press reset function
  • Detects QC 2.0 and 3.0 fast charge modes for compatibility checks

USB C Tester for Chargers and Cables

This USB C tester measures voltage, current, power and capacity on USB-A and Type-C ports. It suits technicians, hobbyists and anyone verifying charger output or cable quality. The device reads 4.5V to 24.0V and 0 to 8.0A. It also checks cable impedance and fast-charge protocol recognition.

Thermals Noise and Power Draw

The unit draws its operating power directly from the circuit under test so it adds no extra load to your supply. Passive cooling keeps it silent during measurements. At 0.04 kilograms it adds negligible mass to a bench setup or field kit.

1.44in Rotating LCD Decides Fit

A 1.44-inch LCD rotates 360 degrees for readable data at any angle. Four buttons and five connection ports handle all measurement modes. Note: the screen stays dark when only a Type-C source is connected without a PD load.

Highlights

  • Measures voltage from 4.5 to 24.0 volts for accurate monitoring
  • Tracks current up to 8.0 amps to verify charger output
  • 44 inch LCD rotates 360 degrees for easy reading at any angle
  • Tests power bank capacity and energy with long press reset function
  • Detects QC 2.0 and 3.0 fast charge modes for compatibility checks

Specifications

BrandYOJOCK
FeaturesUSB Tester, Corded Electric, false
Weight0.04 kilograms
Sports Team1 Piece
TypeVoltmeter, Ammeter, Multimeter

Questions about this item

How do I connect the tester so the 1.44in LCD powers up?

Connect the Type‑C charger to a load that supports the PD protocol; the screen only lights when both a charger and a PD‑capable load are attached.

What regular check does the 8.0A current range require?

Verify cable impedance readings periodically; high impedance can indicate worn connectors that affect the 0‑8.0A measurement accuracy.

At what voltage does the 4.5‑24.0V range stop logging during a long charge session?

Logging stops when the source drops below 4.5V, so sustained use is limited by the charger’s ability to stay above that threshold.

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