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Envistia USB Meter - Easy-to-Use USB Power Meter and USB Tester, Perfect for Testing Voltage and Current (Amperage) Between USB Port and Device: Amazon.com: Tools & Home Improvement
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KWS-V20-BLUE | Digitálny voltmeter | USB tester | Merač spotreby napätia a prúdu | Multifunkčné zariadenie na kontrolu kapacity batérie | INTERLOOK
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