Ultrasonic Rat Repeller
Circuit Principle of Ultrasonic Rat Repeller
The circuit principle of ultrasonic rat repeller is the principle of oscillating circuit. The auditory system of rat is very developed and sensitive to ultrasound. They can judge the source of sound in darkness. The 30-50 kHz ultrasound that young rats emit when being threatened can return to their nests reliably without opening their eyes. Adult rats can send out a kind of ultrasonic call for help when facing crises. They can also call for help during mating. Ultrasonic waves express happiness, and ultrasound is the language of rats. Ultrasonic rat repeller is developed based on this theory. It was first applied to products by German zoologists and electronic technology experts. Ultrasonic rat repeller products were developed respectively to repel mosquitoes, ground mice and hamsters.
Ultrasound produced by ultrasonic rat repeller will make mice and most pests hard to bear. The sound wave will directly push the brains of mice and makes them headache and uncomfortable. Mice will produce symptoms such as loss of appetite, anorexia, convulsions and so on, so they will be eager to flee the scene immediately. The range of human hearing is 20HZ - 20KHZ, and ultrasound greater than 20KHZ, which is inaudible to most people, but some animals can still hear it.