Ultrasounds
HOMEPAGE PESTS ARE GONE CATALOG INFORMATION TESTIMONIALS MAP&DIRECTIONS CONTACT US SURVEY ABOUT US Merchant Policy INFORMATION Scroll down for answers : "What is Ultrasound? Can Ultrasound be used Commercially?, What Diseases Do Rodents Carry?, Can Indoor Air Be A Problem?, and How Is Ultrasound Used For Bird Repelling? What is Ultrasound? How can I develope an effective bird control strategy for my farm? Ultrasound is a sound wave in a frequency too high to be heard by the human ear. The average person can hear sound waves ranging from 20 to 20,000 cycles per second. Dogs and cats canhear up to 27,000 cycles per second and the range of other animals is even higher. When measured electronically,these frequencies are expressed in "hertz" defined as a unit equal to one cycle per second. Therefore, ultrasonic sound waves are frequencies over 20,000 hertz,or 20 kilohertz(kHz).While these high frequencies are called sound. Ultrasonic waves behave more like light than sound coming from your radio. For example, the music from your radio can fill your whole home. With sufficient volume, it can be can be heard through closed doors, and een by your neighbors. Ultrasound, on the other hand, will not penetrate solid objects, nor will it travel effectively around corners, or into rooms other than the room that the Bentley pest repeller is installed. To visualize how the ultrasound will travel, imagine that the speaker grill is a floodlight. The sound will radiate outward in a cone shape, throwing "shadows" behind solid object and castinglittle"illumination"into other rooms. The angle of the speaker cone determines the sound dispersion pattern and coverage area. Why should Ultrasound be Used Indoors Rather than Outdoors? Ultrasound can be reflected by hand surfaces such as glass,metal,tile,or wood. It is absorbed and dampened by soft surfaces such as carpets, drapes,or upholstered furniture. In a room with hard surfaces, like a kitchen, the ultrasound will "bounce" around giving more effective coverage than a room with soft, sound absorbing surfaces. This "bouncing" effect is the reason that ultrasound is so much moreeffective indoors than outdoors. Outside, where there are no reflecting surfaces, ultrasound fades rapidly in the open air. How powerfull is Bentleys Sound? Bentleys pest repeller is one of the most powerful ultrasonic generators available, sweeping a frequency range of 32 to 62 kHz. The signal pulses at 60-80 times per second. Rodents can easily hear the sound generated by Bentleys Pest Repeller in rooms of up to 400 square feet. The average room in the averagehouse is less than 170 square feet. How Does Ultrasound Affect Rodents? Numerous studies, including our own field research, demonstrate that an intense level of ultrasounds can repel rodents when properly used. Rodents exposed to intense ultrasoundwill be subject to auditory stress. Very simply, it hurts their ears. Why Did You Choose a Frequency Range of 32 to 62 kHz? Remember, humans cannot hear frequencies above 20kHz. However, dogs and cats can hearsound up to 27kHz. That's why Bentleys Ultrasonic Pest Repellers are set to broadcast from 32 to 62 kHz, so you and your pets (dogs,cats,birds) can live in peace. Rodents, however, will find sound in this frequencyuncomfortable and will avoid those areas. The frequencies from 32 to 62 kHz are swept-meaning they are changing constantly between 32 and 62 kHz. This helps to prevent rodents from adapting to the ultrasonic sound, which might otherwise be tolerated if it werebroadcast as a single tone frequency. Can Ultrasound be Heard by Rodent Pets? Yes, absolutely. Rodent pets include mice, rats, rabbits, gerbils, hamsters, guinea pigs, ferrets, and squirrels. Never install a an Ultrasonic Pest Repeller in a room inhabited by rodent pets as the sound will cause a severe auditory stress. Does Ultrasound Affect Insects? There have been hundreds of scientific articles published which indicate that a number of insects both emit and perceive ultrasonic sound. Due to the huge number of insect species which exists and the great variation within each species very little scientific research exist which specifically relates to the use of ultrasonic pest control devices. Future research regarding the possible effects of ultrasonicsound on insects may well validate the empirical evidence which is on file. We have over 50,000 testimonial letters from consumers who have used our products and they report insects such as ants, spiders, fleas, roaches, flies, crickets, bats, bees, etc. gone! How do PestContro repellers operate and are ultrasonic pest repellers needed with the PestContro unit? The PestContro Magnesonic Technology alters the electromagnetic fields around the wiring in a home or building. This is very annoying to rodents and pests that are in the walls and they leave that area. One unit will cover an entire house. The units cover 1,000,2500,or 5000 sq feet. The theory is that since they have no place to hide they will leave. Our Pestcontro units have ultrasonic coverage in the room that the PestContro unit is plugged in. Our #1000 ultrasonic units are very effective when combined with the PestContro unit because they offer repelling in the entire cubic area of each room they are placed in(ultrasonic sound does not go through walls. How Many Pest Repellers Do I Need to Cover an Entire House? Some manufacturers claim their devices will cover an area from 1,000 to an even up to10,000 square feet. Actually, this is a scientific impossibility due to a simple phenomenon called "attenuation", a physical law that governs all sound. Simply stated: high frequency sound waves decrease(attenuate) in intensity at a specific rate as the distance from the sound source speaker increases. The basic rule regarding square footage is simple: an ultrasonic device operating in a range that is inaudible to humans or common pets(32 to 62 kHZ) will only cover the room in which it is placed, provided the room is not larger than 400 square feet. If the room is 100 square feet, it will cover 100 square feet. Ultrasound will not penetrate solid objects like walls and due to attenuation will have little affect on rodents more than 20 feet from the sound source. If the room is more than 400 square feet, you will need to use more than one unit per room. CAN BENTLEYS PEST REPELLERS BE USED COMMERCIALLY? Commercial Applications Techniques and Theory The commercial application for ultrasonic rodent repellers is extremely diverse. Virtually any business which experiences on-going rodent problems can potentially benefit from incorporating this technique into its rodent management program. Conventional traps of all types and toxic baits serve only one purpose; to kill the existing target species. Killing the rodents may be satisfying but it cannot cure the problem long term as anyone involved in facilities maintenance well knows. There are always more rodents outside waiting to come in to replace the population killed. The cycle is endless because the "carrying capacity" of the space has not been altered. Carrying capacity is the ability of a given space to support a given number of rodents with food, shelter and water. Rodents will maintain the optimum carrying capacity of a space by killing young and reducing breeding cycles if the population gets too high and aggressive males prevent the incursion of new outsiders. Similarly, when the population is decimated by trapping or baiting, the remaining animals will increase breeding cycles and new outsiders will be allowed to come in. This is simple survival of the species biological response. Rodents are at the bottom of the food chain; everything eats them, so they are well adapted to survive. One survival adaptation that they possess is the ability to communicate in a range of sound that their predators cannot perceive. That range is ultrasonic. Rodents have the ability to emit and receive sound from 20,000 cycles per second (20Khz) to 90,000 cycles per second (90Khz). This ability is precisely what gives we humans the opportunity to alter the environment of the space to make it inhospitable for rodents and therefore break the reinfestation cycle.