USB Tester - FNIRSI FNB58 BT With Bluetooth
Product reference: 14-5905156102194

FNIRSI FNB58 BT USB port tester measures voltage, current, power, ripple and charging curves, supports PD3.1, PPS, QC and other fast charging protocols. Equipped with a 2-inch LCD display, USB-A, USB-C and Micro USB connectors, cable diagnostic function, up to 9 hours of offline data recording and Bluetooth connectivity.

USB Tester - FNIRSI FNB58 BT With Bluetooth

Product reference: 14-5905156102194

FNIRSI FNB58 BT USB port tester measures voltage, current, power, ripple and charging curves, supports PD3.1, PPS, QC and other fast charging protocols. Equipped with a 2-inch LCD display, USB-A, USB-C and Micro USB connectors, cable diagnostic function, up to 9 hours of offline data recording and Bluetooth connectivity.

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78,13 €
Product in warehouse

Guarantee
24 month

Delivery from Europe in
15 - 16
business days

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FNIRSI FNB58 BT USB port tester with Bluetooth


FNIRSI FNB58 BT USB port tester measures voltage, current, power, ripple and charging curves. It supports PD3.1, PPS, QC and other fast charging protocols. Equipped with a 2-inch LCD display, USB-A, USB-C and Micro USB connectors, cable diagnostics, up to 9 hours of offline recording and Bluetooth connectivity.


  • Advanced USB port tester that measures voltage, current, power and charging characteristics in real time.
  • Supports PD 2.0/3.0/3.1, PPS, QC, FCP, SCP, AFC, DASHVOOC, SuperVOOC and other fast charging protocols.
  • 2-inch LCD display, power ripple analysis, real-time waveforms and up to 9 hours of offline waveform recording.
  • Bluetooth connectivity allows data to be monitored on a mobile app, while the cable test function checks PD E-Marker data, DASH cable parameters, and cable resistance.

Product information

Product type USB port and fast charging tester
Brand FNIRSI
Model FNB58 BT
42 × 13 × 82 mm
Screen 2 inch LCD

Connections and construction

USB-A 5-pin high-current input and output
USB-C Input and output; 24 copper contacts
Micro USB Input
Additional connection Computer connection
Management Function buttons, back button and separate PD switch

Measurements and diagnostics

Measurement resolution Up to 0.0001
Power ripple analysis Charger output quality assessment
Waveform monitoring Voltage, current and D+/D− curves
Cable diagnostics PD E-Marker data, DASH cable parameters and cable impedance
PD E-Marker Detection Supports cables rated for up to 240W
Cable resistance check Two-phase measurement under constant current load
Battery capacity calculation Integrated calculation based on recorded charging and discharging data

Recording and communication

Offline recording Up to 9 hours
Data warehouse Up to 10 sets of charging and discharging data
Wireless connection Bluetooth
App and PC support Monitoring on the mobile app and data synchronization with the computer without installing drivers
App alerts Overvoltage and overcurrent warnings; alerts not supported on iOS

Safety warning

Important Use the tester only to test compatible USB power supplies, chargers, cables, and devices. Stay within the specified voltage, current, and protocol limits. Do not use damaged cables or connectors. If the tester becomes hot, emits an unusual odor, or displays unusual readings, unplug it immediately.

Height100mm
Length150mm
Weight80 g
Width60mm
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