New 12V Car Voltage Monitor Battery Alarm Clock display Temperature Thermometer

Features

The work electric voltage: 3.0V
The function description:
1.Date/Hour, Week/Second display function, can 12/24 hour system conversion. 
2. Alarm clock function. 
3.Love to sleep function of 5 minutes.
4.Can switch display temperature: °C / °F .
5.Measure temperature, measure bound: -50°C~70°C.
6.Temperature show resolving power:1°C,Temperature veracity:±1.0°C
7.Measure temperature and sampling periods:20 second.
8.LED be in apoor light function, when using car power supply have be in apoor light, Display LCD full content, If using spare battery power supply, not have light, LCD only display time.
9.The car's storage battery voltage show function.

Key-press function
1.TIME key: switch display Time/Date, press down 2 second and establish time.
2.ALM key: Display the bell's time, press down 2 second and establish the bell.
3.UP key: establish add time ,below the time interface switch display Second/Week.
4.SNZ key: love to sleep, (if without need, may doesn't do it)
5.DOWN / °C / °F key: establish decrease time, switch °C / °F, at display time interface, press down 2 second and turn on the alarm frost of the outside room.

Size: 110x30x56mm