Ultrasonic repeller – a new generation tool for fighting mosquitoes

Ultrasonic electronic mosquito repeller Protektor Freetime

Short description

Ultrasonic electronic mosquito repeller Protektor Freetime is designed to combat mosquitoes outdoors and indoors. It repels mosquitoes outdoors within a radius of up to 1.5 meters from the device, and in a room - up to 30 cubic meters. meters of space.

The Protektor Freetime mosquito repeller has an automatically adjustable ultrasound generator, which itself changes the setting of emitted vibrations in the frequency range that affects mosquitoes of all types. You do not need to worry about setting up the generator and selecting the effective frequency.

The repeller is turned on by holding the ON/OFF button for 3 seconds. The volume of the emitted ultrasound has four levels and is adjusted by successively pressing the same button.

Each press is accompanied by a blinking LED. The number of flashes is determined by the number of the mode you choose: 1st – one, 2nd – two, 3rd – three, 4th – four flashes. The 4th stage is the loudest and is intended for the street.

The Protektor Freetime mosquito repeller has a light indication of its operation. When active, the indicator light flashes every 10 seconds.

To turn off the device, you must hold down the ON/OFF button for 4 seconds. If you forget to do this, 8 hours after turning it on, the repeller will turn off on its own.

The repeller is equipped with a strap for wearing it on your hand or ankle, as well as a special clip for attaching it to a belt or clothing. It can be hung around your neck if you add a cord.

The device is safe for people and pets.

The main qualities of a repeller

The ultrasonic mosquito repeller has the following properties:

— the device is safe for people and animals;

— it does not contain chemicals and elements hazardous to health;

— the operation of the devices does not interfere with mobile phones, alarms and other electronic devices.

Circuit example

Physicists can make a device that produces sound of a certain frequency. But using their drawings, it will be possible to make an effective device within an hour.

The electronic circuits of the ultrasonic repeller show the chain along which the components of the device should be connected.

The designations on the chip mean the following:

• R1-R5 – DC resistors with a power of 0.25 W;
• VD1 – diode to protect the device from short circuit or incorrect connection;
• BQ1 – emitter producing ultra-frequency sound;
• VT1-VT2 – bipolar transistors;
• R6 – variable resistor;
• C1-C2 – capacitors;
• S1 – toggle switch for turning on and off.

All components of the drawing are located on a printed circuit board; you will need batteries or rechargeable batteries for outdoor use. Power supply with voltage up to 12 V.

You can adjust the sound frequency using variable resistor R6. A homemade repeller is used indoors or outdoors.

You can use the K555LA3 microcircuit with good frequency characteristics and low electrical energy consumption. There are only 4 parts in the diagram.

The designations are similar. Assembled on a breadboard. The signal is generated by capacitor C1; if it needs to be changed, it is regulated using a variable resistor R6. An ultrasonic repeller can be made in a few hours with minimal knowledge of physics.

If someone is interested in whether it will work or not, you can spend a few hours of your free time making an ultrasonic repeller. But, it is much easier to buy a ready-made device at an affordable price with similar, or even better, action.

When warm days arrive, it's not only good for sunbathing lovers, but also for pesky mosquitoes, which are considered one of the oldest insect species on the planet. Their distant relatives were five centimeters long and did not give peace to the dinosaurs themselves.

Mosquitoes cannot tolerate temperature changes: they hide in frost and extreme heat. The most comfortable temperature for them is +15… +22 degrees. At this time, they become active and annoy people.

It is also known that mosquitoes do not rise high into the air, but fly above the ground. Therefore, residents of apartments located on the lower floors of residential buildings often need means of protection against these annoying insects, including a mobile ultrasonic mosquito repeller.

Cockroach repellers

All electronic devices can be divided into the following types:

• ultrasonic;
• magnetic resonance.

Main advantage

Electronic repellers are easy to use - they need to be plugged into an outlet (install rechargeable or regular batteries), the distance from the floor should be within 20-40 cm.

They are more expensive

conventional anti-cockroach products, the average cost can range from 500 to 950 rubles. More expensive devices are designed for large premises (warehouses, storage facilities); their use in apartments or houses is not recommended.

Electromagnetic

Under the influence of electromagnetic pulses, pests hide as far as possible from the source. The electronic cockroach repeller can be used for as long as desired - it does not harm the health of people and animals.

The electronic repellent for cockroaches in the apartment must be plugged into an outlet; the repeller operates at low wave frequencies,

which affect the central nervous system of cockroaches and other insects.

Advantages:

• compact dimensions;
• no requirements for creating special storage conditions;
• efficiency;
• absence of dead insects;
• safety.

The optimal temperature for using an electromagnetic repeller is considered to be from 0 to 40 degrees; to enhance the effect, you can turn on several devices at the same time.

To the disadvantages

can be attributed to the rather high cost.

Ultrasonic

The ultrasonic cockroach repeller emits high-frequency frequencies

waves that are extremely unpleasant for cockroaches.

The effect of ultrasonic waves on insects has a scientific basis - mosquitoes that hear sounds similar to those made by bats leave the place where it occurs in fear.

Ultrasound also helps against cockroaches,

This principle is applied in the production of devices. Their operation is based on an integrated circuit, which includes trigger and multivibrator components, resulting in the formation of antiphase and symmetrical signals at the terminals.

A sound source is connected to these outputs, which is a piezoceramic emitter.

According to reviews, the device helps get rid of not only cockroaches, but also midges, house ants, etc.

Advantages

developments:

• ease of operation;
• non-toxic, safe for people and animals;
• the ability to carry out processing in the presence of people;
• large range of action - the effect of a device installed in one room extends to the entire apartment;
• extended spectrum of action - not only cockroaches die, but also other insects.

Despite the large number of advantages, an ultrasonic cockroach trap also has disadvantages

:

• quite high cost;
• questionable safety.

Riddex pest repelling aid

The principle of operation of the repeller is based on connecting to the network; after connection, the wiring turns into a repeller

, under the influence of which not only cockroaches scatter, but also fleas, ants, rats, mice.

The device is also equipped with flashing LEDs, which have a negative effect on pests. The area of ​​influence of the riddex pest repelling aid repeller reaches 200 sq.m., unlike other models, it does not need to be installed in several rooms.

The anti-cockroach device must be plugged in and kept online until the insects disappear completely; in the future, it is recommended to be turned on occasionally for preventive purposes.

Pests begin to show concern after the first week, mice and rats disappear after 14-20 days, insects - after 7-12 weeks. The device is suitable for use in residential and public areas, the repeller is absolutely safe

for health, does not affect the operation of electrical equipment.

For more information about this repeller, watch the video:

What you should know

When assembling a device of this type, you should not expect that you will be able to get rid of rodents as soon as the device is connected and starts working.

In kitchens and pantries, where there is something for small pests to profit from, it is worth installing appliances that are more powerful than in other rooms. In such premises, the fight against mice and rats can take even two months. Where there is no food available, the process will go much faster and will take about two weeks.

To combat rodents in unheated basements and storerooms, you need to assemble a device using radio components that can function at subzero temperatures.

Pets can sense some of the frequencies emitted by the repeller. In this case, they feel anxious. In order for pets to stop feeling the effects of ultrasound, it is necessary to change the frequency of vibrations emitted by the device. If such actions do not lead to the desired result, you will have to purchase a factory-made one. True, many devices from domestic manufacturers also operate at frequencies audible by pets, but there are models from foreign brands that do not affect animals.

Each device is capable of protecting a certain area of ​​the room based on its rated power. However, mathematical calculations made using formulas attached to the diagrams may result in an indicator that does not take into account the load of the room with furniture or other obstacles that reflect ultrasound. Therefore, it is necessary to make an adjustment, taking into account the characteristics of the room where the device will operate.

After studying the reviews of people who have already used purchased and homemade devices, you can decide on your choice. Of course, you can make such a device with your own hands using circuit diagrams and necessary elements from a radio store, but this requires certain knowledge.

The penetration of mice and rats into the house becomes a big problem for its inhabitants. Rodents not only spoil food, things and furniture, rats and... There are many ways to combat gnawing pests, ranging from chemicals and ending with folk recipes. An excellent alternative to all these methods can be one, which works by emitting high-frequency sound waves. Among the popular brands, devices stand out. Considering the rather high cost of the device, many craftsmen have learned to assemble an ultrasonic rat and mouse repeller with their own hands.

Modern mosquito repellers

Currently, mosquito repellers are famous for their variety.

The most popular remedy, which is most often used at home, are plates. The principle of their operation is simple.

When placed in a special device, they heat up. A specific aroma begins to emanate from the plates, which bloodsucking animals cannot tolerate.

Analogs of plates are liquids with identical effects. In nature, such means are ineffective, as they operate on electricity. Most people, when going on vacation, prefer to take with them spirals, which, when lit, release a smell that repels mosquitoes.

Ultrasonic devices for protection against mosquitoes have appeared on the modern market, which are absolutely harmless for both adults and children, but are destructive to female blood-sucking mosquitoes.

After all, they are the ones who attack people. The operating principle of ultrasonic devices is simple, but at the same time unique. The sound waves emanating from the device are similar to the squeak of a male mosquito, which females are so afraid of. In this case, the females quickly leave the place of deployment. For more information about the action of the plates, watch this video:

Such sound vibrations are absolutely not picked up by the human hearing aid. Of course, the cost of such devices is sometimes significant, but they are very convenient to use. They can be used both at home and outdoors.

Children especially need to be carefully protected from insect attacks. For these purposes, do not forget about banal mosquito nets.

To make mosquitoes forget the way into your house or tent, you can resort to one trick. This type of insect really does not like the smell of eucalyptus. Therefore, you should buy a similar essential oil at your nearest pharmacy and lubricate your mosquito net with it.

OUR READERS RECOMMEND! In the fight against mosquitoes and flies, our readers recommend the Pest-Reject repeller. Electromagnetic and ultrasonic technology is 100% effective against cockroaches and other insects. Absolutely safe, environmentally friendly product for humans and pets. Read more here...

Eucalyptus extract is safe and non-toxic. In the absence of hypersensitivity of the skin, it can be applied pointwise to the body, avoiding the area around the eyes and mucous membranes.

Selection of clothes

Another mosquito repellent is wearing the right clothing. To minimize the risk of being bitten by insects, it is worth covering the most vulnerable areas. When going into the forest, be sure to remember to wear long-legged trousers and a T-shirt with long sleeves. Boots and a cap or wide-brimmed hat will also come in handy.

Insects are known to be attracted to bright colors—yellow, orange, pink—so it’s best to avoid them. It is necessary to choose clothes in warm natural colors: brown, beige, gray, dark green.

Protective clothing

Glue ambush

Most often, no matter how hard you try, mice still appear in the area. How to fight is a painful question, to be sure. One of the most effective methods is glue traps. An ordinary disposable plate is taken, special glue is applied along its rim, bait is placed in the middle, and it is left in the places most attractive to mice. Rodents, following the tempting smell, stick to the edge of the plate - and this is where your determination comes into play. In most cases, they are simply thrown into a bucket of water or beaten with a broom. Of course, in some ways it is cruelty, but war is war. But the pest does not suffer for long.

Ultrasonic repellers “Tornado”

The circuitry of these devices is based on a special generator with automatic frequency retuning, which eliminates the possibility of insects and rodents becoming accustomed to the sound. Mainly used in large areas.

It is installed with the front panel facing the pest habitats. The ultrasound generated by the device is reflected from the walls and ceiling, filling the entire room.

This ultrasonic insect repeller has a number of advantages:

• small sizes;
• humane treatment of pests and lack of unsanitary conditions;
• use in premises of any size;
• highly effective in pest control;
• large areas of influence;
• reduced energy consumption;
• absence of extraneous noise;
• This ultrasonic insect repeller, which has very good reviews, is safe for pets.

How to make an ultrasonic repeller with your own hands

If you have certain skills and knowledge in the field of electronics, an ultrasonic repeller

you can assemble it yourself. There are several variants of circuits, the simplest of which is based on an asymmetrical multivibrator. It includes:

1. 2 transistors;
2. 3 resistors;
3. 1 capacitor;
4. switch;
5. “Krona” type battery;
6. piezo emitter (for example, from a wristwatch).

The device is compact in size and easily fits in a shirt pocket. Its radius of action reaches 1.5 m.

Assembly Rules

DIY ultrasonic rat and mouse repeller

The rat and mouse repeller circuit is drawn up on PCB. In the absence of one, everything is connected by wires. Separate wires are routed to the battery and speaker. The sequence of assembling the repeller circuit is as follows.

1. Checking the drawing.
2. Stripping wires, treating them with tin and rosin.
3. Sequential soldering of parts.
4. Connecting the power supply.
5. Testing.
6. The homemade device is placed in a suitable housing or box, in which holes are made in the speaker area.

You should not expect instant results from the device. The effect will be noticeable after 2-3 weeks of continuous operation of the electronic device. You can achieve full results in the fight against rats and mice after 2 months.

When using an ultrasonic device against mice and rats, remember that ultrasound is repelled from a hard surface and absorbed by a soft one. Therefore, its use will be more effective in a room that is not cluttered with objects. To get rid of mice and rats in an apartment or private house, it is necessary to use devices of this type in all rooms at the same time, without giving rodents a chance to move from one room to another.

There are plenty of traditional means to control rodents. Among them are poisons, baits, mousetraps. They are effective, but not suitable for use in homes with small children and animals. You can get rid of mice and rats using an ultrasonic repeller. These devices are among the latest methods of controlling household pests.

Operating principle

According to the results of studies conducted by entomological scientists, it was found that female mosquitoes and mosquitoes behave especially “aggressively” towards people and animals after the moment of fertilization as a result of mating with a male.
According to scientists, the offspring of these insects develop only in this way. To carry out fertilization, males attract females with the help of specific sounds they make. Given this fact, manufacturers supply the market with devices that imitate these sounds. Fertilized females avoid meeting males, so they perceive this signal as danger and tend to leave the ultrasound coverage area.

It should be taken into account that about 100 species of mosquitoes live in Russia. The sounds they make vary in frequency, so a repeller that works effectively in one region may be completely useless in another.

Modern models of devices are equipped with regulators that allow you to configure them to the optimal operating mode for a specific area.