Dual USB Voltage and Current Tester

The Dual USB Voltage and Current Tester is a compact, user-friendly tool that gives instant, reliable readings so you can verify chargers, cables and power banks before they damage devices or deliver slow charging. Ideal for technicians, travellers and home users, this pocket tester helps you optimise charging performance and diagnose faults fast. SKU DL-039.

• Accurate, at-a-glance readings: Dual-colour LED display separates voltage (red) and current (blue) for easy monitoring know immediately if a USB port is supplying the correct power.
• Protect devices and extend battery life: Spot over-voltage, under-voltage and excessive current so you can avoid poor chargers or faulty cables that shorten battery lifespan.
• Portable and plug-and-play: No drivers or external power needed simply plug between a USB source and device to measure real-world charging performance.
• Dual-output testing: Two USB ports let you test multi-port chargers and compare outputs side-by-side.

Use cases include troubleshooting phone and tablet charging issues, checking power bank output before use, validating car and multiport chargers, and testing USB cables for voltage drop under load. Technical details: compact form factor, measures typical USB voltage and current ranges, supports simultaneous dual-USB checking product reference SKU DL-039 for inventory and support.