FNIRSI FNB58 BT USB port tester with Bluetooth

Brand: FNIRSI
Product Code: FNB58 BT
Availability: 4-6 business days
Planuojama gavimo data po užsakymo: 2026-10-08

54.00€
Ex Tax: 44.63€

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FNIRSI FNB58 BT is an advanced USB port and fast charging technology tester that allows you to easily check power parameters, protocol compatibility and accessory quality. It features a clear display, very high measurement accuracy and wide support for fast charging standards from popular brands. It allows you to analyze voltage, current, power and charging waveforms in real time and offline. It checks the quality of chargers, cables and their actual operation, detecting weak or dangerous power sources. Thanks to Bluetooth communication and app support, it provides convenient data monitoring and additional safety features.

Enter the era of ultra-fast charging

FNIRSI FNB58 BT is an advanced measurement tool for tech enthusiasts, service technicians and anyone who wants to have full control over the charging process. Support for PD3.1 standards with EPR AVS mode up to 28V and detection of PD cables with a power of up to 240W makes the device perfect for advanced chargers and accessories. It is a device that allows you to understand and fully utilize the potential of fast charging.

Accuracy at a glance

The front of the tester has a 2-inch high-resolution LCD screen, which provides detailed and highly accurate measurement data. The resolution of up to 0.0001 allows you to detect even small changes in voltage, current and power in real time, so any malfunctions that occur during charging are immediately noticeable. The simple, easy-to-read interface and independent function menu ensure intuitive and convenient operation.

Robust construction and full functionality of connectors

FNIRSI FNB58 BT has a 5-pin high-current capacity USB-A output and input, as well as Type-C and Micro inputs and a Type-C output. The use of 24-pin high-quality copper contacts in the Type-C port ensures stable and reliable measurements. The case also features function buttons, a Back button, a PC interface, and a dedicated PD switch, making the device a full-fledged diagnostic center for USB ports and cables.

Full compatibility with the most popular standards

The tester supports a wide range of fast charging protocols, including PD 2.0 and 3.0, PPS, QC 2.0 and 3.0, FCP, SCP, AFC, PE, DASHVOOC, and SuperVOOC. This allows it to work seamlessly with Huawei, Xiaomi, and OPPO ultra-fast charging technologies, as well as Apple Power Delivery and Samsung fast charging. Automatic protocol detection allows you to instantly check which mode your charger and cable are operating in.

Detect problems before they damage your equipment

Advanced power ripple measurement allows you to quickly assess the quality of your charger. The device clearly displays the waveform level, so you can judge whether the power supply is excellent, normal, loaded with high ripple or even poor quality. This helps to avoid using poor quality chargers that shorten battery life and negatively affect the safety of the device.

Real-time and offline curve analysis

FNIRSI FNB58 BT displays real-time voltage and current waveforms, so you can immediately detect abnormal charging. In addition, it offers up to 9 hours of offline curve recording, so you can analyze the entire process after charging is complete. D+ and D- curve monitoring provides comprehensive information on the changes in charging protocols in real time, making the tester a professional tool.

Cable and real-world performance diagnostics

The device can read data from the CC line in PD cables with E-Marker chip, detect DASH cable parameters and measure their internal resistance in a two-step method at constant current. This makes it easy to check whether the cable actually meets the declared parameters and is suitable for fast, high-power charging.

Smart Power Management and Bluetooth Communication

The tester supports recording up to 10 sets of charging and discharging power data, and the built-in algorithm allows you to quickly calculate the battery capacity based on the recorded values. Bluetooth communication, mobile app and PC support without installing drivers ensure convenient data synchronization. In addition, the Bluetooth app offers overvoltage and overcurrent alarms for greater safety. Note: These functions are not supported by iOS.

Specifications:

Manufacturer: FNIRSI
Model: FNB58
Dimensions: 42x13x82mm
Screen: 2.0 inch LCD display
Measurement resolution: 0.0001
Fast charging support: PD 2.0, PD 3.0, PD 3.1 (EPR AVS up to 28V)
Cable detection: PD E-Marker (up to 240W), DASH cables
Supported charging protocols: PPS, QC 2.0, QC 3.0, FCP, SCP, AFC, PE, DASHVOOC, SuperVOOC
Fast charging compatibility: Huawei, Xiaomi, OPPO (super fast charging), Apple (power delivery), Samsung (fast charging)
Ports and interfaces: USB-A (input and output, high current 5P), USB-C (input), USB-C (output), Micro USB (input), PC interface
USB-C port design: 24-pin copper contacts
Measurement functions: Real-time voltage, current, power
Power ripple measurement: Fast charger quality analysis
Curve display: Real-time voltage and current
Offline curve recording: Up to 9 hours
Battery capacity calculation: Built-in calculation algorithm
Wireless connection: Bluetooth

Tags: fnirsi, fnb58, usb, port, tester, with, bluetooth, measuring, equipment

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