Ultrasonic method

The ultrasonic method uses devices that emit high-frequency sound waves, above the range audible to the human ear, with the intent of disturbing and deterring certain pests such as rodents and some insects. At Fucesa we present it honestly: it is a complementary, preventive, and non-toxic measure that fits within an Integrated Pest Management (IPM) program, not a standalone solution.

How it works

Ultrasonic equipment generates sound waves at frequencies above 20,000 Hz, imperceptible to people. The premise is that this acoustic stimulus is bothersome to certain pests and encourages them to avoid the protected area. Many devices vary the frequency and intensity to reduce the chance that pests become accustomed to the stimulus over time. Ultrasonic waves are directional and attenuate with distance and obstacles: walls, furniture, and shelving block their propagation, so their real range is limited and local.

It is important to be clear about the scientific evidence: studies on ultrasonic repellers show limited and mixed results, and animals can become habituated to the sound. For that reason, it should not be considered a substitute for control measures with proven effectiveness, but rather a reinforcement within a broader strategy.

When it's used

The ultrasonic method is useful as an additional layer of prevention, especially where the goal is to reduce chemical use or a discreet, non-lethal option is required:

• Sensitive spaces such as offices, shops, and warehouses, as a complement to monitoring and exclusion.
• Areas where the goal is to deter the presence of rodents in zones already sanitized and sealed.
• Environments that operate continuously and prefer a measure that does not interrupt their activities.

In every case we recommend it alongside inspection, monitoring, physical exclusion (sealing of entry points) and, where appropriate, direct control, which are the actions that truly resolve an infestation.

Advantages and limitations

As advantages, it is a chemical-free method that produces no residues, operates continuously without interrupting building operations, installs discreetly, and requires simple maintenance. Being neither lethal nor toxic, it fits well in environments that aim to minimize the use of pesticides.

As for its limitations, its effectiveness is not fully supported by the evidence and varies depending on the species, the space, and the possibility of habituation. Sound does not pass through walls or objects, so its coverage is limited, and it does not eliminate breeding sites or resolve an active infestation on its own. For these reasons we always position it as a preventive complement and never as the sole control measure.

Safety and regulations

Although the ultrasonic method uses no chemical substances, its installation is carried out as part of a professional service with trained and certified personnel. When the comprehensive program includes chemical applications or bait management, these are performed in accordance with standard NOM-256-SSA1-2012 and under the current health license from COFEPRIS, using personal protective equipment (PPE) and respecting safety measures for people, pets, and food.

Why Fucesa

With more than 40 years of experience, at Fucesa we prefer transparency over exaggerated promises. We integrate ultrasonic technology within an Integrated Pest Management (IPM) approach that starts with inspection and diagnosis, combines monitoring, exclusion, and direct control, and reserves ultrasound as an additional preventive layer. This way, the client receives an honest recommendation and a program that truly addresses the root of the problem, with service from our headquarters in Toluca and our operation in Querétaro.