DIY Supplies: Electrical Display Type: Digital Only Accuracy Class: 1% Operating Temperature: Operating Temperature: Dimensions: 52mm x 20mm x 14mm Power Supply: DC Type 1: Digital USB Voltmeter Ammeter Type 2: Digital USB Mobile Power
Easy to vollage the usb output and the device input current or loader voltage.
Available for every USB electronic product, such as PC USB, home charger, car charger and so on.
Plug and, light and handy, easy to carry and no need external power supply
By "DR CHARGER", you could clearly know the state of the ChargerPhone, USB cable and any USB device.