Main Features:<br />C8805BL-Z 12 - 24V car charger voltmeter power socket<br />Fits all 12 - 24V vehicles<br />Can indicate a poor or bad charging system<br />Tells whether your battery is holding a charge or not<br />Comes with waterproof and dustproof cap for the interior and exterior use<br />Easy to be installed vertically or horizontally on any flat surface<br />Short circuit / overheat / wire reverse protection<br />Material: ABS<br />Hole diameter: 28mm<br />Package includes cigarette lighter socket / voltmeter / dual USB charger， screw， and insulated terminal<br /><br />DC12 - 24V Power Socket:<br />2 pole nickel plated brass terminal connectors<br />Twist-and-lock system， allows a suitable 12 - 24V power plug (not included) to lock into place<br /><br />Dual USB Charger:<br />Interface: 2<br />Input voltage: 12 - 24V<br />Output voltage: 5V<br />Output current: 2.1A， 1A<br />Dual USB charger port can run multiple devices at one time<br />Blue LED indicator<br />Very convenient and easy to use<br />Widely used for power supply: GPS， PSP， mobile phones and other digital devices<br /><br />DC Voltmeter:<br />Measure range: 6 - 30V<br />3-bits blue LED digital display<br />Easy to read LED segments<br />Monitors the state of your battery between full charge and discharge<br />Can indicate a poor or bad charging system<br /><br />Power Charge Socket:<br />Support all working voltage 12 - 24V motor or electrical equipment<br />Such as navigation， the car with a vacuum cleaner， car charging pump， can be inserted into the hole<br /><br /><br /><br /><br /><br /><br />    Specifications<br />Specifications<br />  Model: C8805BL-Z                                                  <br />                        Color: Black                                                  <br />                        Input: 12-24 V                                                  <br />                        Output: 5V/3.1A                                                 <br />Dimension and Weight<br />  Product weight: 0.226 kg                                                  <br />                        Package weight: 0.280 kg                                                  <br />                        Product size (L x W x H): 17.500 x 5.000 x 6.000 cm / 6.890 x 1.969 x 2.362 inches                                                  <br />                        Package size (L x W x H): 23.000 x 18.000 x 6.000 cm / 9.055 x 7.087 x 2.362 inches                                                 <br />Package Contents<br />  Package Contents: 1 x Cigarette Lighter Socket / Voltmeter / Dual USB Charger， 1 x Cigarette Lighter， 4 x Screw， 8 x Insulated Terminal                                                 <br /><br /><br /><br />                                                <br />