FNIRSI FNB48P BT USB port tester with Bluetooth connectivity

The FNIRSI FNB48P BT is a USB port tester with a Bluetooth module, designed for precise analysis of charging processes. It measures voltage, current and power and shows the readings on a 1.77-inch HD display with four graphing modes. It supports USB-A, USB-C and Micro USB ports, along with a range of fast-charging protocols including QC, USB Power Delivery, Samsung AFC, Huawei FCP and SCP. With a current capacity of up to 6.5 A, the device suits a variety of charging situations.

The built-in cable diagnostics recognise PD e-marker cables and measure internal cable resistance, helping to assess a cable's quality and energy loss. Up to ten measurement data sets can be recorded, and the capacity of a connected battery is calculated directly on the device. A gravity sensor rotates the display automatically by 180 degrees, so the readings stay easy to read regardless of how the tester is positioned.

The CNC-machined metal housing protects the electronics and gives the unit a sturdy build. Via the Bluetooth module, the tester can connect to an app for further data analysis and archiving.