Review on Digital Temperature Voltmeter Gauge Clock with LED Light - 12V 3 in 1 Car Decorative Accessories by Louis Asok

I like the display itself - it matches the power supply (see YouTube) and I went with blue so I can see it better. The problem is the lack of instructions, it came packed in an antistatic bag and nothing was written. The clock has a 24 hour format and the temperature is in Celsius - how to change it? I would give 2 stars just to change the temperature to "F" for both sensors. I can calculate the 24 hour format. Well that's all I know.