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I. Working principle:

● This product adopts high-tech means to generate a very special ultra-low electromagnetic wave. Through the transmission of its own emission components and power lines, it can effectively stimulate the nervous system and auditory system of pests such as cockroaches, ants, spiders, fleas and bedbugs within the control range, make it uncomfortable and escape.

● According to the principle of ultrasonic wave, this product produces solid frequency and frequency conversion ultrasonic wave, which can effectively eliminate indoor pests such as mice and mosquitoes.

II. Scope of Application:

● This product is suitable for home, restaurant, hotel, hospital, office building, farm and other places.

● The effective driving range of ultrasonic control issued by this product is about 70 square meters; The driving range of electromagnetic wave is about 70~110 square meters;

III. Product features:

● This product adopts multiple technologies such as electromagnetic wave, solid frequency ultrasonic wave, frequency conversion ultrasonic wave and so on to drive away all kinds of pests within its jurisdiction.

● This product adopts microcomputer chip and electronic integrated circuit, with appearance of small and beautiful and convenient use.

● This product has stable performance, strong function and quick effect.

● The ultra-low frequency electromagnetic wave emitted by this product can effectively penetrate the wall, and it will not reduce the use effect due to the barrier of articles; While ultrasonic wave has no function of penetrating the wall.

● The ultra-low frequency electromagnetic wave sent by this product is only aimed at all internal pests, and will not cause any adverse effects on human body, household appliances and pets raised by families.

4. Usage:

● plug this product directly into the 220V power socket, adjust the switch, and select the required working mode.

5. Precautions:

● When using this product, please use the socket on the wall and place it in parallel with the wall.

● since most pests move on the ground, this product should be installed near the ground.

● This product is only suitable for indoor use. Do not use it under damp or high temperature.

1. What is ultrasound?

    Answer: When an object vibrates, it will make sound. Scientists call the frequency of vibration per second as the frequency of sound. Its unit is Hz. When the vibration of an object exceeds a certain frequency, that is, when it is audibility range higher than the human ear, people cannot hear it. This kind of sound wave is called "ultrasonic wave", and the audibility range of the human ear is 16Hz-20kHz. Although it is said that human beings cannot hear ultrasonic wave, but many animals have this ability. Bats can send ultrasonic waves of 2~100,000Hz to chase food or avoid dangerous objects, which is like an active "Radar Station", bats use this kind of "radar" to find targets and catch insects. We humans didn't learn to use ultrasonic wave until the First World War, which is to use the principle of "sonar" to detect targets and their states in the water, such as the position of submarine, etc.

    Ultrasonic wave has the characteristics of being unable to penetrate obstacles, strong directivity, short propagation distance, fast attenuation, etc. The transmission route of ultrasonic wave is spread by the way of countless reflections of surrounding objects, and even forms ultrasonic protection net covering the whole prevention space. (Reference The Nature of Sound)

2. What is Ultrasonic pest repeller?

    Answer: ultrasonic mouse expeller is a device that can produce 13 khz-55 kHz ultrasonic wave by using professional high-frequency acoustic wave impulse circuit technology and years of scientific research on rat hearing, the ultrasonic wave generated by the device can effectively attack the auditory system of rats and can lead to physiological dysfunction of rats. This technology comes from the advanced concepts of pest control in Europe and America. Its purpose is to create a high-quality space without rats and pests, create an environment where pests and mice cannot survive, and force them to migrate automatically, it is impossible to reproduce and grow within the scope of prevention and control, so as to eradicate mice and pests.

3. Can ultrasound really expel insects?

    Answer: animals such as mice and bats communicate with each other by ultrasonic wave. The auditory system of mice is very developed and sensitive to ultrasonic wave. They can judge the source of sound in the dark, the 30-50kHz ultrasonic wave that young mice can send out when they are threatened can return to the nest by the ultrasonic wave and echo when they do not open their eyes (foreign references: Allin and anks1971;Carden and ho1992), adult rats can send out ultrasonic waves to call for help when encountering crises, and they can also send ultrasonic waves to express happiness when mating. It can be said that ultrasound is the language of rats (foreign references: fay 1988, Warfield 1973, and The Nature of Sound), so it can use high-power ultrasonic wave to effectively interfere and stimulate The insect auditory system, making it unbearable, and feel panic and uneasy, to eliminate the scope of prevention and treatment of rats.

4. Why didn't the insect killer I bought before work?

A: This may affect the use effect as follows:

    The first is related to the layout of goods, room partition walls, etc., or the distribution of goods (obstacles). If the density of goods placed in the prevention and control area is too high, or the goods are directly stacked on the ground, or there are too many dead corners, partition walls, etc. In such an environment, the number of usage should be increased by insect killer, and high-energy ultrasonic coverage is required to achieve the insect repellent effect.

    The second is that it has a lot to do with the position of insect killer. The position of the mouse repellent is not well placed, and the effect of the mouse repellent will be weakened when the reflector formed is small, insect killer should be placed as far as possible in a place where more reflected and refracted waves can be generated.

    The third is that the control space is too large, and the number of insect killer used is not enough. If the control scope cannot be fully covered, the insect repellent effect will naturally not be ideal. In this case, the number of insect killer should also be increased, strengthen the ultrasonic attack density to achieve the best insect repellent effect.

Electronic mosquito repellent products are not 100% immediately effective, the effect is fast and slow, and it is safer to use it with mosquito nets when sleeping at night!! Thank you!! Please don't order if you like the bad feedback, thank you!