FNIRSI FNB58 BT USB Port Tester with Bluetooth
FNIRSI FNB58 BT USB Port Tester with Bluetooth is an advanced diagnostic tool designed for monitoring USB power delivery, charging performance, and cable quality. It supports a wide range of fast-charging protocols, including PD 3.1, PPS, QC, SCP, AFC, and SuperVOOC, making it suitable for testing modern chargers and mobile devices. The high-resolution display provides real-time measurements of voltage, current, power, and charging behavior with exceptional precision. Bluetooth connectivity, offline data logging, and cable diagnostics make the FNB58 BT an ideal solution for technicians, electronics enthusiasts, and users who want detailed insight into charging performance.
The integrated 2-inch high-resolution LCD screen displays detailed measurements of voltage, current, power, and charging parameters with resolution up to 0.0001, allowing users to detect even minor fluctuations and performance issues. Advanced waveform monitoring enables real-time analysis of voltage and current behavior, while offline recording for up to nine hours allows comprehensive post-analysis of charging sessions. The tester can also identify PD E-Marker cables, analyze cable capabilities, measure internal cable resistance, and verify whether accessories meet their advertised specifications. Bluetooth connectivity and PC integration provide convenient data monitoring and management, while built-in safety functions help identify poor-quality power sources and charging abnormalities before they affect connected devices.
Performance highlights:
• Advanced USB power and charging protocol analyzer
• Supports PD 3.1 EPR AVS up to 28 V and PD cable detection up to 240 W
• Compatible with PPS, QC 2.0/3.0, FCP, SCP, AFC, PE, DASHVOOC, and SuperVOOC
• High-resolution 2-inch LCD display with precision up to 0.0001
• Real-time monitoring of voltage, current, power, and charging parameters
• Live waveform visualization for charging analysis
• Offline curve recording for up to 9 hours
• Automatic fast-charging protocol detection
• Cable diagnostics including E-Marker identification and resistance measurement
• Power ripple analysis for charger quality assessment
• Stores up to 10 charging and discharging data sets
• Bluetooth connectivity with mobile application support
• PC connectivity without additional driver installation
• Overvoltage and overcurrent alarm functions via Bluetooth application
• Multiple USB-A, USB-C, and Micro USB interfaces for broad compatibility
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