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Motion sensor for turning on the light: an overview of modern models and their application (115 photos)

Light throughout a person's life occupies one of the most important places in life. If we recall primitive society, then even then, after the extraction of fire, people managed to become a level higher in the fierce struggle for existence. Thanks to the high technologies available today, using, for example, street sensors, it is possible to achieve increased comfort in the house.

In fact, any modern models of motion sensors are electric wave detectors that record any movement in the zone that is included in its activity. After the device has fixed the movement of the object, the light turns on automatically.

Simply put, as soon as the object enters the response area, a special sensor system begins to work, transmitting all the necessary data to the mechanism to which it was connected. The design is absolutely safe and at the same time makes it possible to significantly save money on electricity.

Looking through the photos of motion sensors to turn on the light, it is easy to notice: a variety of devices are provided for various conditions today, depending primarily on the class (degree) of their protection.

The indicator demonstrates how resistant the housing material of the purchased device will be in the future to various kinds of mechanical influences, as well as unwanted dust, moisture, and makes it clear whether, if necessary, it will be able to function even under hail, rain and snowfall.

The best sensors of such classes as IP 20, 40, 41, 44, 54 and 55.

Types of sensors

IP 20. Such a device works without problems exclusively in a completely closed, necessarily dry room. At the same time, there is a high probability of malfunction in the event of moisture even on the outer part of the housing.

IP 40. The device of this class of protection will work properly even if small particles with a diameter of about 1 mm or sand get on it, but it is absolutely not protected, like the above-mentioned models from moisture.

IP 41. For this sensor, there is absolutely no threat of moisture in any form, so even if, for some reason, drops of condensate fall on its body during the use of the sensor, for example, its operation can continue without interruptions.

IP 44. Such sensors can be used in rooms with high humidity, and even outdoors, because they have splash protection, respectively, they are not afraid of rain.

IP 54. This degree of protection demonstrates that the housing is completely protected from both splashes and any dust that settles. That is, even if, for some reason, the dust ends up inside the sensor housing, it will continue to perform its functions.

IP 55. The peculiarity of the device with such a degree of protection is that in addition to high protection from moisture, various directed jets directly onto the installed sensor are even permissible here in principle.

After you decide how much a protected light switch with a sensor you need, you can proceed to choosing the power that the purchased device will subsequently switch during operation.

It's one thing when you need to turn on a small LED spotlight that does not have high power, and it's quite another thing when you need to switch a sufficiently large lighting system for a huge production shop.

Choosing the right model for all parameters will be especially easy if you find out in advance from the specialists in the store the power of the equipment and their recommendations regarding specific models. As a rule, the switching power limits for most devices of this type range from about 60 to about 2200 watts.

Keep in mind that an infrared type sensor captures thermal radiation. Therefore, it will not be able to work if any obstacles are found in the area of its direct control, such as transparent glass or other structures that create a stable dead zone.

This is most often the main reason for the installation of several sensors located in different parts of the selected area in need of lighting.

Also an important point to consider when deciding to purchase a flashlight with a motion sensor will be to take into account the viewing angle of your device, and of course the radius of its direct action.

The standard angle of such a view for any ceiling device is 360 degrees. That is, a sensor with a smaller viewing angle in the usual 180 degrees for many will definitely reduce the volume of the controlled area by exactly two times.

Most sensors with a smaller viewing angle are mounted on any wall and are used for subsequent fixation of the moment of exit / entry into the room.

How does the motion sensor work?

Today there are a huge number of different motion devices. Most of them work according to the following principle: as soon as pre-programmed actions are noticed on the sensor's impact area, almost instantly the detector will start the relay and then transmit electricity to the light switch sensor directly through the circuit.

The activity of the sensor is set manually. It can be either ten seconds, or five, or twenty minutes. In the event that absolutely no movement is noticed in the room, it will automatically turn off. In addition, you can easily choose the degree of illumination directly in the settings yourself.

When choosing an installation, you should immediately think about its placement. In the future, the type of device and the sensor connection schemes used will depend on this. For example, until someone enters the room, the infrared device will definitely not react under any circumstances.

If you want the light to turn on only when opening the door, then in this case it is best to choose an ultrasonic type device.

Thinking over such a question as which lamp to choose, it is necessary to take into account all the rules of the sensor and study each point of the manual. It is strictly forbidden to choose an angle for viewing and, accordingly, a place at will if the recommended boundaries were clearly spelled out in the attached operating instructions.

The process of installing the mechanism is quite easy – there are two simple circuits with a standard 220 V supply with a switch and, accordingly, without it. However, there are a number of nuances that you should definitely pay attention to.

Firstly, the best thing in advance is for a person who understands various models of devices to find out exactly how the motion sensor is connected.

Secondly, during the selection of the device, it is worth clarifying in advance what the propagation range is, taking into account the area of your room and how many volts will be needed.

Thirdly, you will spend the most effort during the analysis of the sensor location.

In conclusion, it is worth noting that it is important to secure a specific place for the sensor and necessarily a separate switch. This is primarily necessary so that later in an emergency situation it is always possible to turn off the system quickly.

Photo of the motion sensor to turn on the light