Drok Car Cigarette Lighter Plug Voltmeter And USB Charging 2IN1 Meter 12V 24V Voltage Gauge Volt ...

Features: Size:75mm x 40mm Power mode: cigarette lighter style Voltage measuring range: DC 8-40V (DC12V/24V Universal) Display: 3 bits, Blue LED digital tube (if need RED LED, please check the item B00EZ031KC) Voltage error: 0.1-0.2V USB Output Voltage: DC 5.0-5.1V USB Output Current: 0-2.1A Function 1: Car battery voltage monitoring, for 12V cars, SUV, 24V trucks, buses. Function 2: USB charger, can charge 0-2.1A cell phones, digital cameras, tablet computers and etc. Applicable Type: Support Apple/Android, suitable for IPhone/Ipad/Ipod Note: May not compatible with some Samsung tablets, you can use a Samsung adapter. Package includes: 1x 2in1 Digital Voltmeter and USB Charger