Catalog > Test and Measurement > Test and Measurement Instruments > Multimeters > Digital Multimeters Current and Voltage Meter USB Tester Current and Voltage USB Tester FNIRSI FNB38 USB CHARGE TESTR FNIRSI FNB38 Current and Voltage Meter USB Tester QC4+ PD3.0 2.0 PPS Fast Charging Protocol Capacity Test with LCD Screen 446.08 ZAR inc for 1 Each 20 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview The FNB38 is a portable, user-friendly USB tester used to measure and monitor voltage, current, power, and energy capacity during charging, with a 1.44-inch color LCD screen. It supports multiple interfaces (USB-A, Micro-USB, Type-C), detects various fast-charging protocols like PD and QC, and includes features like data storage, screen flip, and firmware upgrades. Features Multi-Interface Support: Equipped with USB-A, Micro-USB, and Type-C inputs/outputs for broad compatibility. High-Definition Display: A 1.44-inch TFT LCD screen provides a clear display of measurements and data. Fast Charge Protocol Detection: It can identify and trigger various fast-charging protocols, including PD (Power Delivery). Power and Capacity Monitoring: Measures input voltage (4-24V), input current (0-5A), power (0-120W), and stores data on energy capacity. Data Storage & Memory: The device can store detected data, allowing for later review of energy capacity and usage. Firmware Upgrades: The device supports drive-free PC upgrades, enabling firmware updates for compatibility with new standards. User-Friendly Design: Features a simple interface, screen flip function, and Chinese/English language options. Common Uses Testing and verifying the performance of USB chargers, data cables, and power banks. Troubleshooting and ensuring the efficiency of charging for mobile phones and other USB devices. Monitoring energy consumption and capacity for electronics enthusiasts, DIY projects, and professional use.