This function reads and displays the data of the level gauge in real time. The timing reading function can be turned on and off, and the time interval for reading data can be set after the function is turned on.
If the "current oil level" is greater than the "high oil level alarm" data, the background color is displayed in red, and so is the temperature value.
If the "current oil level" is less than the "low oil level alarm" data, the background color is displayed in green, and so is the temperature value.
If no real-time data of a certain oil tank is received for more than 30 minutes, the background color of "Update Time" is displayed in red.