This vehicle mounted ultra-sonic rat repellent uses ultra-sonic to drive away rats. It is safe, energy-saving, intelligent switch, easy to install, high temperature resistant, antiflaming, safe and environmental protecting. Features: Does not need to use another power supply, easy to install and use. Reverse connection protecting function. Preventing artificial connection of the circuit and damage the product. Power On Self Test function. When it is installed for the first time and the switch is turned on, the product will enter the automatic detection function to test the function of each component. Battery low voltage detection function. During the operation of the product, the battery voltage will be detected. If the battery voltage is too low (lower than 9.2V), the product will give an alarm, indicating that the voltage is too low. At this time, it will no longer work preventing battery power loss and protect the battery. When the battery voltage recovers, the product will
