These devices have been used so far
Zesco was founded in 2010 by a group of experts and inventors in the form of a special stock. These people stepped on this path with the aim of implementing their ideas and technical experiences. A number of Zesco specialists took effective measures in the field of designing ultrasonic and sonic devices to repel insects and vermin. The successes achieved in this field created the mentality of continuing the work and expanding the company's activities. By taking advantage of modern science, participating in seminars and additional training courses, Zesco specialists have achieved many successes in the competitive field of the market. Zesco strives to reduce the amount of concern of industrialists, farmers and various people regarding the disposal of destructive insects, animals and birds. In this regard, it seeks to find new ways to meet the needs of its customers. Zesco strives to increase the quality of people's lives. Customer orientation and respect for users' rights, along with maintaining the quality of work, are at the top of this company's priorities. Zesco, as the only company that imports ultrasonic devices in Iran, guarantees that it is possible to return the product for customers within 30 days. This factor has created a strong trust between the company and the customers.
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How the ultrasonic device works
Ultrasonic devices that repel animals and vermin work by affecting their hearing threshold.
The human hearing system is not able to hear every sound wave. But it can hear the frequency of 20-20000 Hz. Sound waves whose frequency is less than 20 Hz are known as infrasound waves. While waves with a frequency greater than 20,000 Hz are known as ultrasound waves. These waves are widely used in medicine and industry. The hearing threshold of animals and insects is different. In the case of dogs and cats, it is 22-25 Hz, mosquitoes, fleas, flies and cockroaches 44-38 Hz, lizards 60-52 Hz, and mice 60-72 Hz. Repellents can produce frequencies that can be heard by animals and pests. Hearing these waves, animals and vermin cannot stay in the environment and run away quickly.