FNIRSI FNB58 BT – USB tester with display
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  • FNIRSI FNB58 BT – USB tester with display

FNIRSI FNB58 – USB Tester with TFT Display - BT Blue | Black

169.77
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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)
  • Note: Cables and chargers are not included.
FNIRSI tester for USB-C and PD
Precision USB tester by FNIRSI

FAQ

Frequently Asked Questions – FNIRSI FNB58 / FNB58 BT

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.

Yes – the tester can automatically detect protocols such as PD2.0/3.0, QC2.0/3.0, VOOC, SCP, AFC, Apple 2.4A, and more.

Yes – the FNB58 allows you to measure cable resistance, charging capacity (mAh/Wh), energy, and charging time.

Yes – the 2.0" TFT display can be rotated 90 degrees for easier viewing depending on usage angle.

Yes – it supports USB-C Power Delivery up to 28V and 7A (max 196W).

No – the package includes only the tester. No cables or chargers are included.

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