What does a USB-C power tester measure?

A USB-C tester sits inline between a charger and a device and reports voltage, current, power, and the negotiated fast-charging protocol (such as USB PD or PPS) — useful for checking cables, chargers, and power budgets.

Is a pocket oscilloscope enough for hobby electronics?

For audio, microcontroller signals, and low-frequency debugging, a compact scope with a few megahertz of bandwidth is often plenty. Fast digital buses and RF work need far more bandwidth, and mains measurements need instruments rated for them — never a pocket scope.

Isolated CH340 USB-to-TTL Module

For developers connecting serial hardware through an isolated USB-to-TTL module.

SKU BLZ-235

$26.99

Isolated CH340 USB-to-TTL Module is part of the BooLabz Test Gear, RF & Diagnostics collection: compact instruments for seeing what your circuits, cables, and radios are really doing.

Why we shortlisted it

For developers connecting serial hardware through an isolated USB-to-TTL module.

Listed as

High-speed Isolated USB to TTL Serial Port Power Optocoupler Isolation 3.3V 5V TTL Output CH340 Module

Browse all Test Gear, RF & Diagnostics

Fast U.S. ShippingArrives in 5–7 business days
Curated & TrustedQuality gear, no junk
Support CreatorsOpen source. Brighter future.

FAQs

What does a USB-C power tester measure?: A USB-C tester sits inline between a charger and a device and reports voltage, current, power, and the negotiated fast-charging protocol (such as USB PD or PPS) — useful for checking cables, chargers, and power budgets.
Is a pocket oscilloscope enough for hobby electronics?: For audio, microcontroller signals, and low-frequency debugging, a compact scope with a few megahertz of bandwidth is often plenty. Fast digital buses and RF work need far more bandwidth, and mains measurements need instruments rated for them — never a pocket scope.