KWS MX18L Digital LCD Display USB Tester Voltage Current Power Meter Ammeter Voltmeter Compatible with Smartphones Computers White

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• [Intelligent Power Memory] This advanced usb tester features 9 sets of power outage saving functions that temporarily store current capacity and energy data when power is interrupted. when power returns it automatically resumes accumulating your usage data. the smart memory function preserves mah input from up to 9 different charging devices making it easy to verify your charger's true capacity.
• [Comprehensive Device Protection] Our usb voltage tester includes u disk current detection that alerts you when working current exceeds 100ma indicating potential device issues. it also monitors usb interface voltage with 5v±5% helping you identify unstable power sources that could damage your valuable electronics including smartphones tablets and laptops.
• [Versatile Monitoring Tool] With a wide measurement range of 0 5a current 4 30v voltage and 099mah capacity this compact tester is for evaluating various usb power sources. it displays all metrics simultaneously on its clear lcd screen including timing up to 99 hours power up to 150w and even internal temperature from 0 80℃.
• [Multifunctional Usb Tester] The kws mx18l is a 10 in 1 digital lcd display usb tester that combines voltage current and capacity monitoring in one compact device. with its intuitive interface you can effortlessly track your smartphone's charging status in real time by simply connecting it to any usb port. no complicated operations needed just plug and play for instant power monitoring.
• [User Friendly Design] The kws mx18l features simple one button operation for cycling through 9 data groups clearing unwanted data and rotating the display. its voltage calibration function ensures accurate readings while the compact 56.6x24.7x11.2mm size and lightweight 13.9g design make it ideal for both home and travel use with any usb powered device.

Product Description

Directions for use: 1: Click the button to view 1-9 sets of charging data. 2: Long press the button for 3 seconds to remove a set of charging data. 3: Double-click the button to rotate the screen to view. 4. Long press the button and insert the USB interface to enter the voltage calibration: For example: (1) If display (5.526V→) Then double click button quickly (2) If display(5.528V↑), then you can click the button to increase the display voltage. (3) Double click button quickly, if display(5.528V↓),then you can click the button to decrease the display voltage. (4) Then double click button quickly again, if display(5.526V→),then click the button one more times, the screen will display Current Calibration! The system automatically performs current calibration and will automatically return to the function home page after calibration is completed. Specifications: Material: ABS Color: White, Black Current: 0-5A Voltage: 4-30V Timing: 0-99 hours Power: 0-150W Capacity: 0-999999mAh Inner temperature: 0-80℃ Divide into groups: 0-9 group Charging resistance: 0-​.9Ω Positive voltage: 0-10V Negative voltage: 0-10V Item size: 56.6*24.7*11.2mm Item weight: 13.9g Package size: 14.7*9.4*1.2cm/5.78*3.70*0.47in Package weight: 17.3g Note: If the output voltage exceeds the allowable charging voltage range of the electronic product, please stop using the charger or mobile power supply. Package List: 1 x USB Test Meter