FR FNB48P USB TesterThe FR FNB48P USB Tester is a multifunctional USB voltage and current meter that helps you test the performance, safety, and health of USB ports, charging cables, and power banks. With support for USB-A and USB-C, this tool displays real-time data on voltage, current, capacity, power (W), resistance, and temperature on a vibrant LCD screen.Whether you're a tech repair professional, electronics hobbyist, or just want to monitor your phones fast charging behavior, this FR FNB48P USB Tester compact device is perfect for diagnosing and verifying USB charging systems.Its multi-page display, data logging, and protocol detection features make it one of the most advanced testers available in its class.Key Features: Supports USB-A, USB-C, and Micro USB input/output Real-time display of voltage (V), current (A), power (W), energy (Wh), resistance (), temp (°C) Bidirectional USB-C Testing Data recording, overvoltage/current alert, and cable quality testing Supports multiple fast charging protocols: PD, QC, SCP, AFC, FCP, Apple 2.4A, etc. Technical Specifications: Specification Details Model FR FNB48P Display 1.44" Color LCD Input Interface USB-A, USB-C, Micro USB Voltage Range 4V 30V Current Range 0 5A Power Range 0 150W Energy Measurement 0 99999mAh / Wh Fast Charging Detection PD, QC2.0/3.0, SCP, FCP, AFC, Apple 2.4A, etc Temperature Monitor Yes (Built-in Sensor) Data Recording Yes Use Cases Cable Testing, Phone Charging Monitor, Power Bank Testing, USB Load Monitoring