Usb voltage tester condition

This USB Charger Current Voltage Charging Detector battery Tester Volt meter Ammeter Can easily measure the operating current of the output voltage of the USB port and equipment 2. smallsize, no power, and other ancillary equipment, plug and play also detect USB charger output voltage and current are standard suitable for factories, Laboratory and users.

1.LED lead acid battery BMS capacity indicator voltage meter. 2.Can display the battery power you can also plug directly into the phone or the 5V equipment charging. 3.Suitable for all kinds of outdoor power mobile power instrumentation and other equipment additional battery power voltage display and additional USB to charge the phone and other functions. 4.Uses synchronous rectification step-down chip scheme with little heat energy saving and environmental protection. 5.Small size and light weight. Descriptions: 1.Fine workmanship and good performance. 2.Easy to read easy to use durable in use.