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

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

Summary of the article:

What is a motion sensor?

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 automatically turns on.

Simply put, as soon as the object falls into the response area, a special sensor system starts working, 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 see: for various conditions today, a wide variety of devices are provided in strict dependence primarily on the class (degree) of their protection.

The indicator demonstrates how resistant the body 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 if it can function even under hail, rain and snow if necessary.

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 enclosed, always dry room. At the same time, there is a high probability of a malfunction in the event of moisture even entering the outer part of the housing.

IP 40. A device of this protection class will be serviceable even if small particles in the diameter of about 1 mm or sand get on it, but it is absolutely not protected, like the above models, from moisture.

IP 41. For this sensor, there is absolutely no danger of moisture in any form, so even if, for example, condensate droplets fall on its body for some reason, its operation can continue without interruption.

IP 44. Such sensors can be used in rooms with high humidity, and even on the street, since they have protection against splashes, respectively, they will not be afraid of any rain.

IP 54. This degree of protection demonstrates that the housing is completely protected from splashes and from any dust that settles. That is, even in the case when for some reason the dust is inside the sensor housing, it will continue to carry out its functions.

IP 55. A feature of the operation of the device with such a degree of protection is that in addition to high protection against moisture, various directional jets directly to the installed sensor are permissible here even in principle.

After you decide how much you need a protected light switch with a sensor, you can proceed to the choice of power, which the acquired 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 fairly large lighting system of a huge production hall.

Choosing the right model for all parameters will be especially simple if you first find out the power of the equipment and their recommendations regarding specific models from specialists in the store. Typically, the switching power limits for most devices of this kind range from 60 to about 2,200 watts.

Keep in mind that the infrared sensor detects thermal radiation. Therefore, it will not work if in the area of its direct control any obstacles are found, such as transparent glass or another structure that creates a stable dead zone.

It is this that most often becomes the main reason for installing several sensors located in different parts of the selected area that needs lighting.

Also, an important point that you must 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 viewing angle for any ceiling fixture is 360 degrees. That is, a sensor with a smaller viewing angle, which is familiar to many 180 degrees, will definitely reduce the volume of the area under control exactly two times.

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

How does a motion sensor work?

Today there are a huge number of different movement devices. Most of them work according to the following principle: as soon as actions pre-programmed in advance are detected on the sensor exposure area, the detector starts the relay almost instantly and subsequently transfers electricity directly to the light sensor to the light-on sensor.

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

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

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

Thinking over the question of how to choose a lamp, you should definitely take into account all the rules of the sensor and study each item in the manual. It is strictly forbidden to choose an angle for viewing at your own request and, accordingly, a place if the recommended boundaries are clearly stated in the attached operating instructions.

The installation process is quite easy - there are two simple circuits with a standard supply of 220 V with and without a switch. True, there are a number of nuances that you should definitely pay attention to.

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

Secondly, during the selection of the device, it is worthwhile to clarify in advance what is the distribution distance taking into account the area of your room and how much volts will be needed.

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

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