Alert Rule / lighting

Nowadays, with the increasingly bad environment, there are more and more stormy weather. And this stormy weather even threats to the lives of people who are driving on the road. According to this situation, the “Alert Rule” is designed. When driving in the raining day, the drivers don’t know the situation of the low areas. And the “Alert Rule” takes advantage of water pressure to reflect the water level of the road all the time. When the water level reaches to the specified standard, the “Alert Rule” will give an alarm to the people inside the car so can get out of the car to safe themselves quickly.