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DROK® Double USB output Display Charge Detector Voltmeter Gauges Ammeter 0-3A DC 3.2-10V Red / Blue LED Digital
USB current and supply voltage
DROK® Double USB output Display Charge Detector Voltmeter Gauges Ammeter 0-3A DC 3.2-10V Red / Blue LED Digital (Electronics)
5
Buy at Amazon.com
DROK® Double USB output Display Charge Detector Voltmeter Gauges Ammeter 0-3A DC 3.2-10V Red / Blue LED Digital (Electronics)
5
Buy at Amazon.com
Customer Review
accurate and reliable displays U and I on USB power supply. no complaints. tested voltage regulator with a solar panel and smartphone charger.
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