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Smartronix
USB Power Monitor W/ LCD Screen, Black ST034TT05-01-001
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USB has become the de facto medium for handheld device power. Unfortunately, most devices want more than the 5 volts/500 milliamps that the original USB spec calls for. Smartronix's USB Power Meter can tell you exactly how much current a smartphone, tablet or other device can suck down... or how little a USB port can deliver. The LCD shows the port's precise voltage (between -19.99V and +19.99V) and the exact current flow (up to 1,999mA). Use peak mode to show only the highest values during the test.
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