Motion sensor for switching on light - priority

Recently, the usual switch is replaced by a motion sensor to turn on the light. This trend is easily explained, because it has a number of advantages. First, significant energy savings are achieved - the light is lit only when someone is in the room, the rest of the time the lighting is off. Secondly, such sensors are convenient to install in the passage rooms, where the switch is inconveniently located. The main application they found when installing in premises with temporary stay of people, for example in the toilet, corridor, as well as on the street, near the house or garage.

The sensor itself is a device that consists of a sensing element that directly responds to movement and a control device for closing the electrical circuit. When installed on the street , the motion sensor for turning on the light can be adjusted so that it reacts to the movement of only large objects, in which case the running cat will not cause its operation.

The most widespread in everyday life was the infrared motion sensor. He has a relatively low price, while not inferior to their counterparts on the remaining characteristics. Such devices come in several versions.

On the viewing angle, the motion sensor for turning on the light can be of a small radius and distance of sensitivity, and also more sensitive with a viewing angle of 360 degrees. The latter are usually used for indoor installation, because they respond to traffic from all directions, the sensors are aimed mainly in the street, where there is no need to cover a large area.

In addition, in most of these devices, various characteristics can be adjusted, for example, sensitivity to external illumination (it works only in case of insufficient illumination), range, size of moving objects, to which the motion sensor of light activation reacts, the operating time after the movement of the detection object stops.

Installation of such a device and its inclusion in the electrical network will not require any special skills. In the kit there is an instruction in which the connection process is described in detail. Despite the large number of varieties in shape and size, all devices have the same structure.

Buy a motion sensor to turn on the light can be in any store, specializing in electrical goods, as well as in online stores. Today the cost of the sensor is relatively low. The price of the device pays off by saving electricity, which in some cases can reach 70%.

In addition, the light sensors can be wireless, in this case the lighting control is carried out in two steps: first the device itself is triggered, then the signal is transmitted to the control device that closes the electric circuit. Such devices are slightly more expensive, they work on batteries. Their use is justified when it is problematic or impractical to wire.