BFKK USB-C Power Meter 4-24V 6.5A Bluetooth 16-bit

What it is

The BFKK USB-C power meter measures voltage, current and power from 4 V to 24 V at up to 6.5 A. It uses a 16-bit ADC for high-resolution readings down to 0.00001 and supports QC 2.0 and QC 3.0 trigger protocols. Bluetooth connects the meter to an Android app for live curve display and alarm setup. Driver-free PC software adds data logging, protocol control and firmware updates. It is suited for engineers, technicians and hobbyists who need to verify USB-C chargers, power banks, cables and device draw.

Before ordering

Confirm the device under test uses a USB-C port and operates within the 4 V to 24 V range. The Bluetooth companion app currently runs only on Android, so an Android phone or tablet is required for wireless monitoring. PC software works without extra drivers but needs a USB connection to the meter. No external power supply is needed for the meter itself; it draws operating power from the measured line. Ensure the test cable or load can handle up to 6.5 A if you plan to measure near the upper limit.

Under sustained load

The 16-bit ADC maintains 0.00001 resolution during continuous operation, allowing detection of small drift in voltage or current over time. Real-time curve recording on both the Android app and PC software captures thermal effects and stability without gaps. Over-voltage and over-current alarms can be configured in the app to trigger before limits are exceeded. The meter’s own power draw remains low, so it does not significantly load the source during long test sessions. Firmware upgrades via the PC tool keep measurement algorithms current.