How Does an Ultrasonic Insect Repellent Work

In fact, ultrasound, pulse waves, electromagnetic waves, and biomimetic waves are vibrations in the air that can act as natural “repellents” to drive away unwanted pests. Ultrasound penetrates the environment and targets specific types of pests, disrupting their traditional life cycles and making their habitats inhospitable.

Pests are thus hindered in their movements, lose their sense of direction, and are forced to seek more comfortable and quieter places to reproduce. The intensity of the mechanical sound waves emitted can also be adjusted to prevent pests from developing resistance to the sound waves, thereby achieving a more sustained pest-repelling effect.

1. Working Principle

When the ultrasonic pest repeller is in operation, it emits ultrasonic waves in the 25-60 kHz frequency range. Ultrasonic waves within this frequency range can affect the vast majority of pests and rodents and are inaudible to humans. Ultrasonic waves directly affect the auditory and nervous systems of pests, causing them discomfort and disturbance, thereby repelling them. Additionally, outdoor insects and rodents cannot enter your home because they are deterred by the ultrasonic pest repeller inside your house.

2. Scope of Application

Ultrasonic pest repellents can effectively repel mosquitoes, rats, fleas, flies, bedbugs, cockroaches, spiders, ants, termites, fleas, ticks, mites, and centipedes, among other pests.

3. Coverage Area

• The effective coverage area of the ultrasonic insect repellent is approximately 3225 square feet (300 square meters).
• Since ultrasonic waves cannot penetrate walls and solid objects, separate units are required for independent areas.
• Suitable for use in homes, warehouses, supermarkets, hotels, hospitals, schools, offices, and other areas.

4. Features

• Does not use chemicals or sprays, making it a harmless method of pest control;
• Uses physical methods to repel pests, making it harmless to humans, pregnant women, children, and pets;
• Repels pests rather than killing them, leaving no pest remains and maintaining environmental hygiene;
• Ultrasonic pest repellents have low energy consumption and require almost no maintenance, making them an economical and effective pest control solution.

5. Usage Instructions  

• The device should be installed at a height of 80–120 cm (31.50–47.24 inches) above the ground, perpendicular to the ground, and plugged into an outlet;  
• Avoid installing it behind curtains, furniture, refrigerators, or any other furniture that may obstruct the ultrasonic frequency;
• There should be no large obstacles within a 1-meter radius, and it should not be installed behind refrigerators, wardrobes, sofas, etc.;  
• Initially, an increase in pests such as mice may occur, which is a normal phenomenon, as they leave their nests after being exposed to ultrasonic waves;  
• Typically, noticeable results will be observed after approximately two weeks.