12V/24V 3.1A car motorcycle car cigarette lighter charger dual USB voltmeter

This charger has save charging time more than 30%; safe, fast. The output voltage is 2.1A and 1A. strong performance, equipped with the field of intelligent chip, the output voltage and current accuracy of high precision, response speed, intelligent identification, use more stable security. It is applicable to all mobile phone brands, tablet PC, car recorder, electronic dog,GPS and other electronic equipment, to eliminate the critical moment of power embarrassment, and can be usedfor small cars, off road vehicles, mini vans (no more than 24V), yachts, motorcycles, ships. Please Note: Most trucks, excavators, large trucks, battery voltage is actually more than 48V, which is not recommended to use this type of car. Please make sure that the voltage of your car is at 12-24V This product is not a cigarette lighter,can not light up a cigarette. Cannot be positive and negative intermodulation, so as not to burn the electronic products! Parameters: LED voltage display: red light、blue light、green light Input voltage: 12-24V Output current:3.1A (2.1A+1A) Voltage detection range: 6-28V Note: Connection method: "+" to connect the positive pole; "-" the negative pole Package Included: 1 x Cigarette lighter Charger