Is it useful to install 1 5 meters electronic intelligent drive device?

The electronic smart drive installation meter is of course useful. Because the distance of installation of this drive is about three meters. So of course you can press the meter.

Is it useful to install a meter battery in an electronic smart drive? It is useful to install a meter battery in an electronic smart heater, and it is also very good to use, and the sound waves it emits can drive away many animals.

Hello, this is useful don't modify it yourself. It may not work properly after modification.

This is of course useful, and in general they are very useful if they are installed on one of the drives.

It shouldn't be useful, because this kind of thing may be used to repel mosquitoes, but it doesn't need to be so professional.

Square dance sound is an independent working environment, and there is no need to receive a wireless signal when working, so nothing can interfere with it, if not with batteries but with alternating current.

For this electronic smart drive. If the seat is installed too high, it will not play an effective role, and it is generally best to be about 500 above the ground.

Is it useful to install the electronic smart sensor on the meter electronics? If it is useless, if this is beyond the normal specifications, it can be replaced by other methods or substitutes.

Is the modifier Android Mi battery useful? It should be voiced.

Now the electronic smart her ATM is still useful according to the meter of the flower shop, and the use of electronics can better help us all.

Useful, electronic smart heater meters, electronic is useful.

Is it useful to install 1 5 meters electronic intelligent drive device?

The electronic intelligent drive is installed in the meter electronics is useless, and it seems that it is not very useful.

It is definitely useful to install the electronic intelligent drive device, but the installation meter is also a little long, and it can be a little shorter.

Is it useful to install a meter battery in the electronic intelligent drive? Very useful.

Electronic intelligence drives to install the meter, and the electronic system of games can now be a little longer.

The electronic intelligent drive is installed 1 55 meters electronic is useless, this should be based on the distance, not too far, too far, no effect.

The intelligent scarer moves bricks, should the motor in the house be useful and useful?

The mat of the electronic intelligent drive installation meter can be used.

Yes, it needs to be plugged in all the time, but the smell is used to repel mosquitoes.

Some need to be powered on all the time, and some can be charged.

Will the rat die at home.

This is always going to be powered on, but to be honest, I don't think the effect is good?

Generally, mice can hear sound waves of 18-60kHz, while brown mice and mus mus have stronger hearing and can hear ultrasound waves of 100kHz and 90kHz. Theoretically, ultrasound can affect the activity and feeding of mice, and have a certain repellent effect.

The effect of ultrasonic mouse repellent depends on the power of the sound waves, generally the effective sound waves for rodents should be more than 30kHz, and the human hearing limit is below 20kHz, that is to say, if the real ultrasonic mouse repellent is not felt by adults or children.

In addition, the penetration ability of ultrasonic mouse repellent is weak, as long as the ultrasonic mouse repellent is placed in a place where rats are often infested.

People who have come over, generally useless, just bought two, there are still many mice at home. Or a fake I bought.

The electronic intelligent mosquito repellent is a sound that mosquitoes are nasty and afraid of in the form of ultrasound. The effect is still okay.

Mosquito repellent is all one**.

Of course it works. The principle of the electronic mouse repeller is: under the control of a microcomputer, electromagnetic waves are emitted through the power area of the home or building, and propagated along the power lines in the room, so that all the wires that communicate in the wall or in the building emit pulse radio waves.

A mouse repellent is an electronic mouse repellent that intermittently emits ultrasound waves with varying frequencies to force mice and other pests to flee the scene without being "adaptive".

The ultrasonic mouse repellent uses today's latest advanced technologies and materials such as ultrasonic and piezoelectric ceramic buzzers to generate shocking ultrasound waves with periodic continuous frequencies through advanced electronic circuits to attack the hearing and nervous systems of rats and force rats to flee the scene.

Basically no effect, people study the living habits of mice after the production of electronic mouse repellent, in fact, a specific frequency of ultrasound, but the effect of repellent rats is not good, because mice are sensitive and suspicious by nature, very adaptable, at first it will be a little useful, and then the mice will find that it will not pose a threat, so the repellent fails.

Electronic mouse repellent, when it is new, it is not very good once it is used for some time, especially the instability of voltage, and the data drift of components will lead to the frequency error of mouse repellent, making it invalid. In addition to raising cats, you can use sticky rat boards, rat traps, rat cages, rat poison, the disadvantage of rat poison is that after the rat takes the medicine, it will die in a corner, if it is a new public house for exclusive use, there is no channel for rats to enter and exit the house, there is a place that has been neglected is the flush toilet, many mice (water mice) are drilled out of it, so it is usually necessary to cover the lid, because this phenomenon has occurred in my house.

It works! I've seen merchants selling rat repellent who kept 4 baby mice in a small cage to prove the effect. When the power of the mouse repellent was turned on, the 4 little mice were scurrying around in horror, and when the power of the mouse repellent was turned off, the little mice immediately calmed down!

According to relevant information, rats will be "nervous" when they hear the audio of about 45kHz. Stay away from this sound now! Electronic mouse repellers are made according to this principle.

It's like the most unbearable sound we humans have when we pull an iron pot on a smooth concrete floor. Older friends may have had this experience. Nowadays, iron pots with claws are hardly used.

It's really useless, I used it for half a year, and there was no shortage of mice, so in a fit of anger, I threw it away.

It's useless, it has that effect, but it's actually very inconvenient, if there's a mouse where you live, I advise you not to buy it, if it's stocked, you can buy it.

I personally bought it and tried it for several months, but it didn't work at all, it was purely deceptive.

It's all a scam, don't buy it, it's 100% a scam.

It's okay for a day or two, and then it's useless.

1. Reasons for buying electronic mouse repellent devices: Many customers are worried that after using rodenticide, rats will die in a corner that cannot be found, emitting a foul smell to spread bacteria and viruses; Worry about rat poison mixing into food storage places, worry about babies accidentally ingesting it, and food poisoning accidents.

2. The principle of mouse repellent rat repellent: using the latest advanced technologies and materials such as ultrasonic and piezoelectric ceramic buzzers, the shock ultrasonic waves of periodic continuous frequency are generated through advanced electronic circuits. Attacking the rat's auditory and nervous systems and forcing the rat to flee the scene does not cause it to occur"Adaptability", non-toxic to the human body.

3. The characteristics of the electronic mouse repellent are:

1. Using special IC circuit** and high decibel converter, it has a long life and low power consumption, which is suitable for long-term use. 2. What rats are most afraid of is frequency conversion scanning (sweeping

modulation) composite ultrasound. 3. It does not contain chemical raw materials and dangerous devices, and the mouse repellent only interferes with the nervous system of rats and will not have adverse effects on the human body and pets. 4. Easy to install, maintenance-free, simple to operate.

5. The repellent effect of three-dimensional space can reach any direction of the vertical and horizontal planes, which is completely different from the general rat trapping and other fixed-point repellent rats. 6. The ultrasonic wave of this product 20-65khz is not within the hearing range of humans and poultry, and will not interfere with household appliances. 7. The angle of the emitter can be changed.

Answer: The hearing range of the human ear is about 16-2000hz, and the output frequency of the ultrasonic mouse repellent is generally above 20000hz, and the frequency above 20000hz can not have an impact on the human hearing system, so our ears can't hear at all, and the power of the electronic mouse repellent has not reached the ability to penetrate the human body, so there is no harm to the human body.

Glad to answer for you, I hope it helps.

It's useless, it's all a lie. The street sells rat repellent devices, you take a closer look, the iron cage under the mouse is connected to the high-voltage power grid, and the performance shows you the rat repellent effect when the power grid is energized and the rat jumps and barks.

The global cat biowave mouse repellent is different from those that used ultrasonic waves to drive away pests in the past, according to research, the frequency band that rodents can perceive is not too beyond the sound wave range, for a long time, in the field of rat repellent technology, the concept of ultrasonic can repel mice, in essence, is a misleading consumer, practice has proved that ultrasonic, electromagnetic waves can not really repel rats at all, can only play a psychological comfort to you! The use of biological waves to repel rats is the right choice, so that the rat repellent project can become a reality.

I personally bought it and tried it for several months, but it didn't work at all, it was purely deceptive.

I said, "Black Cat's is very easy to use, do you believe it?"

Yes. Ultrasonic mosquito repellent featuresThis product uses high-tech ultrasonic resonance technology to produce low-frequency pulsed ultrasound. Female mosquitoes on the version.

The frequency of ultrasound is sensitive, and the right makes it annoying and escapes. Due to the huge differences in weight, structure, characteristics, etc., different organisms respond to sound waves at different frequencies. The ultrasound waves emitted are aimed at the characteristic frequencies of mosquitoes, and the characteristic frequencies of humans and mosquitoes are very different, so there is no harm to the human body.

Useful. Because the ultra-bai sonic mosquito repellent du is to imitate the natural enemies of mosquitoes, such as zhi dragonflies or male mosquitoes and other frequencies to reach dao

Repels female mosquitoes and works as a fruit.

The specific principle of use of ultrasonic mosquito repellent:

1. According to the long-term research of zoological experts, female mosquitoes need to supplement nutrition within a week after mating to ovulate and produce smoothly, which means that female mosquitoes will only bite and suck blood after pregnancy. During this period, female mosquitoes can no longer mate with male mosquitoes, otherwise production will be affected. At this time, the female mosquito will try her best to avoid the male mosquito.

The super-powered sonic mosquito repellent simulates the sound waves of various male mosquitoes shaking their wings. When the female mosquito hears the above sound waves, she will immediately flee to repel mosquitoes.

According to this principle, the ultrasonic mosquito repellent uses this feature to design an electronic frequency conversion line to make the mosquito repellent produce ultrasonic waves similar to the wings of male mosquitoes, so as to achieve the purpose of repelling female mosquitoes.

2. Dragonflies are the natural enemies of mosquitoes, and this product imitates the sound of dragonflies flapping their wings, so as to achieve the purpose of driving away all kinds of mosquitoes.

3. The mosquito repellent software simulates the ultrasonic waves emitted by bats, because bats are the natural enemies of mosquitoes, and mosquitoes can identify and avoid the ultrasonic waves emitted by bats.

It's not a magnetic field, it's not radiation, it has a mosquito repellent effect on radio waves, there is no radiation, only radiation, is the effect good? The practice situation prevails, it will not affect human health, how useful is grandma? If the product quality problem causes discomfort to the human body, please stop using it temporarily, return the product immediately, protect consumer rights, and protect integrity.

A few years later, the ultrasonic mosquito killer has made a comeback, and if it doesn't work, it doesn't work! I believe this will not be the last.

High-frequency sound waves are not electromagnetic waves, so they have no effect on the human body; In addition, its frequency is higher than the hearing range of the human ear, so people can't hear it, and mosquito repellent has a certain effect Electronic repellent is useful. Electronic mosquito repellent is utilized.

It's useless at all, Lao Tzu is still bitten by mosquitoes, and there are a lot of them. Scammed.

I bought five of them a few days ago, but the effect is not very good.

A group of **, don't believe it, it doesn't work at all.

The female mosquito wants to suck blood and lay eggs, and the sound can scare away unrealistic, and the house is so big, where to run? If you are hungry, you will inevitably suck blood, not to mention that you need to have a child!

100% deceive, don't believe it, it's useless.

It is useless, many universities in the United States have done experiments on dozens of products on the market, and none of them can achieve the effect of repelling mosquitoes, and the so-called principle is made up.

A gimmick, it's really deceiving!

Useless. Actually tested. It's better to buy mosquito coils.

I have also seen a lot of articles that say it doesn't work, I have used ultrasonic mouse repellent before, and the results are completely ineffective.

It is true that it is harmless to people, and scientific studies in many countries have shown that it is not specialized in repelling mosquitoes, insects and rodents.

Chen Chongxue, director of the Department of Otolaryngology of the First Affiliated Hospital of Tsinghua University: "If you use mobile phone software to repel mosquitoes during sleep, the "buzzing" sound will not only affect sleep, but also cause tinnitus if it lasts for a long time. ”

Dr. Michael Rust of the Department of Entomology at the University of California, Riverside noted that ultrasonic mosquito repellent does not cause mosquitoes to produce any meaningful behavior or cause physiological responses.

According to Dr. Nelson of Purdue University in the United States, there is no ultrasonic insect repellent product that can repel mosquitoes.

The U.S. Federal Commission and the National Environmental Protection Agency (EPA) have conducted a rigorous review of ultrasonic insect repellent products and concluded that there is insufficient evidence that they are effective at repelling pests or rodents.