PolarLander 3 in 1 Digital Display Ammeter Voltmeter Thermometer 12V 24V Cigarette Lighter USB Car Charger

Features: ?
Brand new and high quality. ?
Suitable for 12V and 24V battery. ?
Output voltage:5.0V. ?
Maximun output current:0~2.1A. ?
Display color: Red+Blue. ?
Size: 75*40 mm
Function: ?
Function 1:Digital thermometer suitable for 12V and 24V battery measuring range:-10~80degree. ?
Function 2: Simply plug into cigarette socket,instant confirmation of battery voltage,low power consumption high light display.Every 10 seconds, voltage and temperature values will in turn show ?
Function 3:Car-Mounted Charger.

Suitable for 12V and 24V battery.
Output voltage:5.0V.
Maximun output current:0~2.1A.
Function 1:Digital thermometer suitable for 12V and 24V battery measuring range:-10~80degree.
Function 2: Simply plug into cigarette socket,instant confirmation of battery voltage,low power consumption high light display.Every 10 seconds, voltage and temperature values will in turn show