1PC Ultrasonic Car Repellent, Electronic Rat and Marten Deterrent with LED Strobe Lights for Car, Barn, Kitchen

The product is powered by a conventional 12V car battery and does not require any additional power supply, making it easy to install and use. It features reverse polarity protection to prevent damage caused by improper connection of the circuit. A self-test function activates upon power-up. When installed and switched on, the product enters an automatic detection mode to verify the function of each component. The red light, white light, and high-frequency emitter are detected sequentially. A low battery voltage detection function monitors the battery voltage during operation. If the battery voltage is too low (below 9.2V), the product will trigger an alarm to indicate the low voltage and will cease operation to prevent battery drain and protect the battery. When the battery voltage is restored, the product automatically stops triggering an alarm and enters standby mode. Frequency conversion output. The product uses a scanning frequency output and a fixed frequency output, and the output time also changes at intervals, which reduces the hearing resistance of mice and makes their job easier. Flashing white LED indicator. The flashing white LED inside the car has an even more deterrent effect. Vibration detection. This product has a vibration detection function. When the car starts, the product vibrates. When the product detects this, it stops operating. At this point, pests such as mice will not damage the car, and power consumption will be reduced simultaneously. When the car stops and the vibrations cease, the product assumes that the person has left and automatically activates the operating mode after 5 minutes to guard the car and protect it from pests such as mice.