Multifunctional USB car charger, car thermometer and battery voltage meter monitor for 12V and 24V battery.
You can charge your devices and measure the temperature and voltage at the same time.
Voltage and temperature display changes automatically.
Easily installed in the car lighter port on your dashboard.
Display screen digits available in blue, red and green.
Supply voltage : DC8-30V.
Output voltage : DC5V.
Output current : 2.1A (max).
Quiescent current : 35mA.
Ambient temperature : -10°C~60°C.
Size : 8x4cm.