What is the function of a car rodent repellent?

[Moore]

Car rodent repellents have the effect of repelling rodents. A car rodent repellent is an electronic rodent repellent for vehicles that utilizes the latest technological advancements in modern microelectronics. It can intermittently and alternately generate extremely low-frequency electromagnetic waves and ultrasonic waves, which act on the auditory and nervous systems of rodents and other pests. Methods to prevent rodents in cars: Scent Method: Place mothballs in a bag and hang them in the engine compartment. You can also use toilet water, cooling oil, or air fresheners, although the effectiveness is not very good. Chemical Method: Use specialized chemical products or agents designed to repel rodents, which tend to be more effective. However, chemical products can still cause some harm to the human body, and their odors can easily be inhaled inside the car, so ensure proper ventilation when using them. Ultrasonic Method: The ultrasonic method is a type of electronic rodent repellent. It involves a small device that produces ultrasonic waves undetectable to human hearing but audible to rodents. However, ultrasonic waves are highly directional and attenuate significantly when encountering obstacles, rendering them ineffective against rodents.