What's the function of the car rat fence?

No, I've had the same problem as you before. The car is parked in the green belt of the community. Rats are also very rampant, and a wireless mouse repellent called Qiaocivet was used in the back, without any wiring changes. In the engine room, the mouse disappeared for a while. A pair of batteries has been used for half a year, which is very good. It seems to be a patented product. No wonder it is so effective. The mouse fence of the vehicle still has a certain function: 1. First, go to the car wash shop to wash the car, pay attention! It's basically clean from the inside out, and it's best to be shiny (because mice are afraid of strong light, hehe is joking). Even the engine box, including engine, water tank, battery, etc. The key is to eliminate the smell of rats. In this way, the mouse will not be so presumptuous; 2. Step 2: Discuss with the administrator to change parking spaces, choose spacious and bright places without dead ends, and strengthen the health management nearby. Rats like dark and narrow places; Step 3: put something with a strong pungent smell in the engine box, such as camphor and rotten eggs. (It can be hung in an idle place of the engine box). Be careful not to get close to high-temperature objects to avoid being melted by high temperature. The purpose is to make the mouse uncomfortable inside; 4. Step 4: Keep cleaning the vehicle every 2 ~ 4 days. This should prevent rats from getting on the bus. Electronic mousetrap is also a method, and the effect is ok. But these are basically not 100% solutions, and the key is the surrounding environment.