Upgraded multi-function USB C power meter: detect the charging status and process of USB or Type C devices, which can display current, voltage, power, power, capacity, resistance and other functions.Support QC3.0, QC2.0 and BC1.2. An essential tool for detecting the charging performance (charging speed and quality) of chargers and USB charging cables (such as output cars/solar panels). Can be used to find the maximum current of wireless chargers, test the capacity and power of mobile power.Professional protection: equipped with overvoltage protection, overcurrent protection, undervoltage protection, low energy consumption protection and alarm system. This upgraded USB Type C tester can detect and protect the device from damage to the maximum extent. If there is a sudden power outage, it will automatically cut off the output and sound an alarm while saving data.Wide range of applications: for PD protocol fast charging mode measurement technology 29W power supply, 5V3A/9V3A/12V2.5A/15V2A. Can be used to test other Type C devices, compatible with Galaxy S10/S9/Note 10+, ChromeBookPixel, , etc.1.44-inch LCD multi-color display: The upgraded version provides IPS HD 9 LCD main color display interface, which can be switched by key. Supports English or Chinese display. Voltage measurement range: 3.60V-32.0V Resolution accuracy: 0.01V Current measurement range: 0.1-7 A (maximum display 8A) Resolution accuracy: 0.01 A Capacity accumulation range: 0-999999 MWH Resolution accuracy: 0.001 Wh Power measurement range: 0-299.99 W Resolution accuracy: 0.001 W Maximum timing time: 999 H 59 M 59 S minutes Resolution accuracy: 1 second Refresh time: 500 ms/time 500 ms/time Measurement rate: 0.5 times/S Product size: 67 x 60 x 12 mm Power flow: Less than 0.015 A Working temperature: -10-+60°C Working humidity: 10-80 (no condensation) Working air pressure: 80-106kpa This section introduces the operation : 1) Click to switch pages. 2) Long press the button: reset all data to zero (mAh, Wh, 00:00:00). 3) Click the button three times: switch the number of cumulative stored data groups (10 groups of data). 4) Double-click the waveform interface to switch pause/start, and long press to switch the data refresh interval. 5) When selecting overvoltage, undervoltage or overcurrent in the setting interface, long press to enter the setting mode. Single click for subtraction, double click for addition, long press for continuous and rapid adjustment. Colour:Black Material:ABS Package Contents: 1x Power meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. USB tester Charging Power Detection Analyzer USB tester Power meter