Features: 1.Black shell, LED indicator light, exquisite workmanship, making it looks fashionable and nice-looking. 2.12-24V input voltage, widely used, can be installed and used for all 12-24V car and boats. 3.Equipped with QC3.0 USB, it can supply power for mobile phone, tablet, GPS, etc. 4.With voltage meter, it can detect the use of car battery at any time, prevent the safety accident caused by bad battery. 5.With current meter, allows you check the output current of USB port at any time. 6.Precision manufacturing makes it has stable performance and long service life. Specification: Condition: Brand New_x000D_ Item Type: Car Digital Display_x000D_ Optional Color: Blue, Red, Green_x000D_ Hole Size: Approx. 2.9cm/1.1in_x000D_ Cable Length: Approx. 60cm/23.6in_x000D_ Product Material: ABS_x000D_ Product Color: Black_x000D_ Input Voltage: DC 12-24V_x000D_ Output Voltage : 5V_x000D_ Output Current : QC3.0_x000D_ Measurable Voltage: 6-30V_x000D_ Measurable Current: 0-3A_x000D_ Reverse Connection Protection : Yes_x000D_ Operating Temperature: -20- 80_x000D_ Waterproof Grade: IP65_x000D_ Installation: Can be installed in motorcycles, car, ships, yachts, RV, bus and other large transport tools_x000D_ Application: _x000D_ It can be used to power mobile phones, tablets, navigation and GPS devices;_x000D_ Detect battery voltage at any time;_x000D_ Detect the electric current at any time._x000D_ _x000D_ Wiring: The red wire is connected to the positive pole of the power supply, and the black wire is connected to the negative pole of the power supply.es_x000D_ Operating Temperature: -20- 80_x000D_ Waterproof Grade: IP65_x000D_ Installation: Can be installed in motorcycles, car, ships, yachts, RV, bus and other large transport tools_x000D_ Application: _x000D_ It can be used to power mobile phones, tablets, navigation and GPS devices;_x000D_ Detect battery voltage at any time;_x000D_ Detect the electric current at any time._x000D_ Wiring: The red wire is connected to the positive pole of the power supply, and the black wire is connected to the negative pole of the power supply. PackageList: 1 x Car Digital Display1 x 23.6in Cable