XCSOURCE 12-24V Quick Charge QC3.0 USB Car Charger Socket Red LED Digital Voltmeter Ammeter Amp for Motorcycle Marine AT

Quick charge 3.0 for phone for most smartphones, Tablet, GPS, digital cameras, PDAs and other USB accessories.
LED digital display voltage monitor and current monitor, shows the accurate voltage and current status of device, prevent your motorcycle or car from starting hard.
Over-heated, over-current, over-charging protection, charging will be automatically stop when battery is full, easy to use and install.
Voltage measuring range: 7V - 36 V, current measuring range: 0.08A -3A, actually voltage can reach 38V, if more than 38V, the screen will shut down.
Sturdy ABS material shell, IP66 waterproof, full competence for outdoor usage.