FNIRSI FNB58 – USB Tester with TFT Display (BT Blue / Black)
Advanced USB-C voltage, current and power tester – with or without Bluetooth
FNIRSI FNB58 is a compact and precise USB meter for measuring voltage, current, and power. Available in two versions – black (no Bluetooth) and blue (with Bluetooth and mobile/PC app support). Perfect for testing cables, chargers, and mobile devices.
Available Versions
●FNB58 (Black) – Standard version, no Bluetooth, full functionality offline
●FNB58 BT (Blue) – With Bluetooth module and support for Android/PC app
Key Features
● Measuring range: 4–28V, 0–7A, up to 196W (resolution 0.00001)
● Protocol support: PD2.0/PD3.0, QC2.0/QC3.0, VOOC, SCP, AFC, Apple 2.4A
● 2.0” TFT color display with 90° rotation
● Auto protocol recognition and real-time data
● Cable resistance, capacity, energy and time measurement
● Bluetooth (BT version only) – real-time app monitoring
Technical Specifications
● Voltage: 4–28V ±(0.2‰+2)
● Current: 0–7A ±(0.5‰+2)
● Power: up to 196W
● Resolution: 0.00001 V/A/W
● Weight: 44 g; Dimensions: 82 × 42 × 12 mm
● Ports: USB-C, USB-A, micro USB
Package Contents
● 1× FNIRSI FNB58 or FNB58 BT (depending on version)
The Black version is the standard model without Bluetooth and works fully offline. The BT (Blue) version includes a Bluetooth module for real-time monitoring via Android or PC app.