5A USB Tester - Fast Charging Protocol Analyzer with Voltage & Current Detection (Black) | Perfect for Testing Phone Chargers, Power Banks & Car Adapters

Feature:1. Simple Operation: The USB tester is simple to operate, only need to connect the USB interface.2. Wireless Connection: The USB tester supports wireless connection for Android, for IOS, and PC computers, allowing you to observe data changes anytime and anywhere.3. Support Multiple Fast Charging Protocols: This is a USB tester that supports the detection of multiple fast charging protocols.4. Real Time Monitoring: The voltage, current are displayed on the same LCD screen, which can monitor the charging status of the mobile phone in real time.5. Application: This USB tester can be used to test the capacity and power of mobile power supplies.How to Use:1. Short press the button to change the screen.2. Quickly double click the capacity to reset to zero (mAh).3. Quick 3 click power reset to zero (Wh).4. Quick 4 click is to reset the timer to clear the current group (00:00:00).5. The quick 5 click is to change the cumulative data storage group number (NO.X).6. Long press the button is the capacity and power.Reset all and clear the current group (mAh).7. When the screen everts the interface, press and hold the key again to flip the screen settings.8. When the interface is black, lon