Feature: *Multi-function fast charging protocol detector: integrated USB-A, Micro-USB, Type-C interface, with 1.77-inch high-definition display, using external 16-bit ADC, PD protocol physical chip, real-time monitoring of voltage and current during charging , power, electricity, capacity, charging protocol, curve waveform, etc. *6-digit high-precision display: one-click switching between 5-digit and 6-digit display, maximum resolution 0.00001, real-time monitoring of subtle changes in voltage, current and power during charging *New interface upgrade: FNB48S uses USB3.0 interface, 9-pin pin design, backward compatible with USB2.0, ten times the transmission rate of USB2.0. *Multiple sets of data recording battery capacity calculation: FNB48S can record up to 10 sets of measurement data, and the measured data can be used for battery capacity calculation *Driver-free installation: integrates data management, protocol control, and firmware upgrades to support monitoring and recording voltage and current curves; protocol single triggering and smart triggering and other functions Specification: Part Name: USB tester Model: FNB48S Material: Metal and Plastic Color: Black Product size: 75*34*13mm Range, resolution Input voltage: 4~24V, 0.00001V Input current: 0~6.5A, 0.00001A Input power: 0~156W, 0.00001W Load equivalent internal resistance: 0~9999.9Ω, 0.0001Ω D+/D- voltage: 0~3.3V, 0.001V Device temperature: 1°C, 1°F Capacity: 0~9999.99mAh, 0.00001mAh Electricity consumption: 0~9999.99Wh, 0.00001Wh Cable internal resistance: 0~9999.9Ω, 0.0001Ω Equipment running time: 99 days 23 hours 59 minutes and 59 seconds, 1 second Recording time: 999 hours 59 minutes and 59 seconds, 1 second Package Contents: 1*FNB48S USB tester Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Fnb48S Current Voltmeter Usb Tester Trigger Qc4+Pd3.0 2.0 Fast Charging Protocol Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. If you have any questions, please feel free to contact us, we will solve it for you.