How do ultrasonic cat repellers work? - briefly
Ultrasonic cat repellers emit high-frequency sound waves that are inaudible to humans but irritating to cats, deterring them from entering specific areas. These devices activate when motion sensors detect a cat's presence, ensuring targeted and effective operation.
How do ultrasonic cat repellers work? - in detail
Ultrasonic cat repellers are devices designed to deter cats from entering specific areas by emitting high-frequency sound waves that are unpleasant to felines but inaudible to most humans. These devices operate on the principle that cats have a highly sensitive hearing range, extending up to 65 kHz, which is significantly higher than the human range of 20 kHz. When activated, the repeller detects motion or heat signatures using built-in sensors, such as passive infrared (PIR) sensors, and then emits ultrasonic sound waves at frequencies typically between 20 kHz and 60 kHz. The sound is perceived as irritating or alarming to cats, encouraging them to leave the area without causing them harm. Some models also incorporate flashing LED lights or additional deterrents to enhance effectiveness. The repellers are often used in gardens, patios, or other outdoor spaces to protect plants, furniture, or specific zones from unwanted feline intrusion. They are powered by batteries or solar energy, making them portable and environmentally friendly. Advanced versions may include adjustable frequency settings to target specific animals or avoid deterring non-target species. While the effectiveness of ultrasonic cat repellers can vary depending on the cat’s temperament and environmental factors, they are widely regarded as a humane and non-invasive solution for managing feline activity in designated areas.