October 25, 2004 - Lititz, PA-Ultrasonic sound – one that humans can not even hear – may become the ultimate weapon in the battle against unwanted rodents that are causing over $1 billion in damages annually in the United States.
New ultrasonic repellents, using advanced technologies and sound frequencies over 20 kHz, are now proving to be an effective and humane method of keeping mice and rats from the home. They also are an ideal alternative to using traps and poisons indoors.
By keeping the rodents outside the home, ultrasonic repellents also eliminate human contact with trapped or killed rodents. They are the perfect answer in keeping rodents away from food service areas, hospitals, kennels, stables and other areas where poisons may not be desirable.
The experts at Victor®, the most recognized brand name in rodent control and pioneers of the first spring-trip mouse trap, recently debunked some of the myths and addressed common concerns about using sonic devices:
“Can Sound Really Work as a Repellent?” Yes, if used effectively. A simple “chirp” of a single tone, repeated every few seconds, is not enough to repel rodents. Complexity of sound and the dB output are both important factors. By using a programmable integrated circuit, for instance, Victor’s SonicPestChaser creates a continuous non-repetitive wave that runs throughout three octaves (32 to 62 kHz) and features three design spike points. Pulsing at 68-80 times per second, the unit makes a continuous, highly complex cacophony of noise to keep rodents away. The ultrasonic output of the Victor unit reaches a minimum sound pressure level (SPL) of 105 dB for maximum repelling capability. And, naturally, the sound levels are inaudible and imperceptible to humans (usually up to 20 kHz) and house pets (up to 27kHz).
“Will The Rodents Eventually Adapt to the Sound?” Perhaps to a simple and repetitive sound. But the non-repeating, layered piercing wave of the SonicPestChaser and other Victor units prevents rodents from discerning any type of pattern or single tone within the complex piercing noise, making it impossible for them to aurally adapt to the unit over time.
“How Far Are Sonic Units Effective?” Outputting at a minimum of 105dB, the Victor SonicPestChaser repels in an area of up to 400 square feet (approximately the size of a double-car garage). Since ultrasonic sound can not penetrate walls, cabinets or furniture, a separate unit is required for each room for maximum effectiveness. Victor offers a variety of household solutions, including a mini-four pack and a new dual-speaker directional unit, which is smaller, more stylish and more discreet.
“Will The Sound Bother My Pets?” Units outputting at 32kHz or higher are well above the hearing range of dogs, cats and other common pets like birds and fish. However, household rodent pets – such as hamsters, ferrets and guinea pigs – are affected by the noise, and should not be kept in the same room as an ultrasonic unit.
“Will The Unit Interfere with Electronics in the House?” No. Ultrasonic units, which plug directly into the wall, do not interfere with television, radio, cable, telephone, cell phone, wireless or any other electronic signals.
“How Effective and For How Long Are Sonic Units Effective?” Field test studies show that the Victor UltraSonic units, which use sound as negative behavior-modification, effectively “train” rodents to stay away in six to ten days. The high quality piezo ceramic transducer not only provides a crisp and clear sound output, but will also last anywhere from five to ten years without adjustment or servicing needed. Victor UltraSonics are approved for sale in Indiana, Colorado and Canada.
Victor is part of Woodstream Corporation, which offers a wide range of least toxic pest control solutions under the Victor, Victor Poison-Free®, Concern®, and Safer® Brand products. Its extensive line of rodent control products also includes several spring-type and glue-type mouse and rat traps, electronic mouse and rat traps.