4in1 Car Calendar Datetime Clock Display,Digital Thermometer,Battery Monitor Voltmeter,2.1A Car Mounted Usb Charger (12V Use)

Description

Datetime clock and calendar display.
Digital thermometer.
Car battery monitor.
Car mounted charger.

Function:
Digital thermometer suitable for 12V battery measuring range: -9.9-99.9.
Simply plug into cigarette socket, instantconfirmation of battery voltage, low power consumption high light display.
Car-mounted charger,output voltage:5.0V.Maximum output current:2.1A.

1.Screen(above) displayer "Datetime",short pressing button "set" for cyclic display "year", "month", "date", "hour", "minute" and "second".
2.Screen(below) display "voltage" and "temperature", short pressing "up" for cyclic display current car battery voltage and current temperature. The red light brighting when voltage is displayed, the bule light brighting when temperature is displayed.

Set up:
Long pressing button "set" for setting up time, the screen(above) shining,meanwhile the srceen(below) stop displaying, then short pressing "set" for cyclic switching "year", "month", "date", "hour" and "minute", pressing button "up" can set up the shining number, then long pressing the button "set" for saving date, the "second" auto save as "0".