How does an electromagnetic mouse repeller work? - briefly
The unit produces a high‑frequency electromagnetic field «electromagnetic field» that rodents find irritating, prompting them to leave the vicinity. A low‑voltage coil continuously cycles the field to prevent the animals from becoming accustomed to it.
How does an electromagnetic mouse repeller work? - in detail
Electromagnetic rodent deterrents generate a high‑frequency magnetic field that interferes with the nervous system of mice. The device contains a coil of insulated copper wire driven by an oscillator circuit. When powered, the oscillator produces alternating current at frequencies typically above 20 kHz, creating a rapidly changing magnetic flux around the coil.
The magnetic flux induces electric currents in the tissues of nearby rodents. These induced currents stimulate sensory receptors, producing a sensation of discomfort without causing physical injury. Mice, seeking to avoid the unpleasant stimulus, vacate the area and refrain from returning while the field remains active.
Key components of the system include:
- Power source (battery or mains) supplying the required voltage.
- Oscillator module producing the high‑frequency signal.
- Copper coil acting as the radiating element.
- Protective housing to prevent accidental contact with the coil.
Installation places the coil at ground level or near entry points, where mice are most likely to travel. The field extends several centimeters from the coil, covering typical pathways such as gaps under doors, wall voids, and baseboards. Continuous operation maintains an environment that discourages habitation, while the lack of moving parts ensures low maintenance.