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- DIY repeller
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- The device from mice
If you can not use poison for mice, and the influx of pests is such that traps and glue bait do not cope, it is worth buying an ultrasound generator. The stores lack foreign and domestic models. But you can make an ultrasonic repeller of rats and mice with your own hands.
What details to use
The device can be assembled on a timer ne555 or ne556n. Microchips P416 and KT315 will make the signal, which is responsible for repelling rodents and insects from the house, stronger.
Before you start assembly, you need to get the necessary details:
- capacitors C1, C2, C3 - one each;
- resistors R1 and R2 - 2 pcs.;
- resistors R3, R4, R5 - 1 pc.;
- transistors KT361, GT404, GT402 - 1 pc.;
- 5 V battery - 1 pc.;
- dynamic head - 1 pc.
Details can be removed from unnecessary or old electronic boards or you can search for components of microchips in the market.
On a note!
The speaker should be selected based on the area of the room. A power of 0.5 W will allow ultrasound to spread over a distance of a thousand meters.
Variable resistors (R1 and R2) help to set the output level of ultrasonic waves. Simple resistors (R3, R4, R5) reduce the voltage in the mains.
Capacitors and transistors allow you to make a frequency circuit.
You will also need such components:
- diode - protects the device if it is not correctly connected to the network;
- piezo-emitter - produces an ultrasonic signal;
- toggle switch - turns the device on and off.
You will need to buy a soldering iron. Without it, the rat and mouse repeller circuit will remain unassembled.
How to assemble
Before assembling the parts, it is necessary to check the drawing and arrange the wiring. Their ends need to be cleaned and processed with rosin and tin.
The scheme of an ultrasonic rodent repeller is collected on a textolite. But if it is not, then you can simply solder everything with wiring. Two long wires are separately output for power and speaker.
Important!
All parts of the ultrasonic repeller are soldered gradually. In this case, do not rush, because you can overheat the transistors and the rat and mouse repeller will not work.
After assembly, a power source is connected to the device and the device is tested. The speaker should beep a little.
An ultrasonic repeller for rats and mice is housed in a housing. For this purpose, take a suitable box. A cardboard box for sweets or a cigarette pack will do.
Make a needle in the box for several holes on the speaker side. A homemade device will make sounds unpleasant for mice and rats
The principle of operation of the device
Ultrasonic Rodent Repeller emits high-frequency sounds between 30 - 70 kHz. The human ear does not perceive this frequency, but many types of mice and rats, cockroaches and other pests begin to feel discomfort.
Some devices emit electromagnetic waves in addition to ultrasound. The latter penetrate even through the walls and allow you to scare away living creatures at a greater distance. Ultrasound waves meeting an obstacle - a wall or furniture - are reflected from it.
On a note!
The frequency of scaring off mice should change from time to time. In this case, rodents will not be able to adapt to the device.
When creating or buying a device, you should consider where it will work:
- If there is no heating in the room, and the temperature drops below zero, it is worth using a device that is powered by a network.
- Battery powered repellers are suitable for heated rooms.
The device will not start to scare away animals right after the start of work. It takes time to get rid of rats and mice. Faster they will leave the rooms in which access to food is limited - after 2-3 weeks. The real effect is achieved after two to three months of continuous operation of the device - the mice will leave the place with food reserves.
Use an ultrasonic repeller for prevention does not make sense. Rodents adapt to the waves and stop responding to them.
Now you know how to make a mouse repeller with your own hands. A home-made device will work no worse than a factory one, if assembled correctly. This will save money and get rid of unwanted animals for a long time. If there is no free time, and get rid of mice in the apartment or private house need as soon as possible, you can purchase ready-made devices:
