1. Time display, 12/24 hour system conversion.
2. Alarm function.
3. Snooze function, snooze time: 5 minutes.
4. Capable of switching temperature display unit C/F(degree).
5. Temp metering duration: 3 seconds.
6. Car battery voltmeter(DC 12V-24V, it can be manufactured particularly if not meet your requirements).
7. Key-press function.