1pcs portable lcd usb power charger voltage current waltt detector tester monitor wholesale

Купить 1pcs portable lcd usb power charger voltage current waltt detector tester monitor wholesale по лучшей цене

Voltage current switching display; Measuring range: DC 3~8V; Current: 0~3A; Error: 1%; Portable and convenient no need power supply plug and play; It can measure output voltage of the USB port and the device working current or load voltage.

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