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5in1 Multifunctional Charger: Car charger USB is not only able to charge for mobile phone, iPad or other devices, but also be able to be used to measure battery voltage, in-car temperature, charging voltage and current.
Clear LED Display & LED Back-light: This car multi charge is provided with LCD display and LED backlight, so you can see the parameters clearly in dark night.
Wide Input Voltage Range: Car charger dual is able to tolerate wide input voltage range(DC 12-24V), available for various type of car.
Built-in Self-recovery Fuse: The mobile phone car charger has built-in self-recovery fuse, which will protect car circuit under extreme condition. After the product is cooling, it will recover, so you don't need to buy or replace the fuse.
Wide Application: The car phone charger is available for cars, trucks and various electronic products such as GPS, tablet PC and mobile phone.

Description:

Display Screen: LCD Display
Input Voltage: 12-24V
Output Voltage: 5V, ±5%
Output Current: Maximum 3A
Output Terminal: Dual USB Output
Temperature Measurement: External Temperature Sensor
Fuse: Built-in Self-recovery Fuse

Five Functions:
Charge for mobile phone.
Measure car battery voltage.
Measure in-car temperature.
Monitor charging voltage for mobile phone.
Monitor charging current for mobile phone.