Doorbell - what are they ?

calls

Types There are three basic types - mechanical, electromechanical and electronic.

1. Mechanical call.It is used most often as a particular element of the decor style doors.It is used primarily in hotels, cafes and restaurants.Less commonly, in private homes and almost never in the high-rise buildings.Its advantage is that it meets the necessary style.



2. Electromechanical.Enough common calls.The principle of operation is simple - the electric current supplied to the coil, whereby the striking mechanism is in contact with the plate (usually a metal), which acts as a resonator.The volume depends on the size of the resonator.Advantages of the above products:
   • Lifecycle long enough.
   • simply mounted
   • Simple call the device as a whole.

   Disadvantages are as follows:

   • To hear sound, it needs electricity
   • signal does not change, and most often it is monotonous melody.



3. Electronic calls.Different from electromechanical his gut - it is entirely electronic, and the sound comes from the speaker.Typically, these devices allow you to control the volume and offer a choice of several tunes.In turn, given the type of calls is still divided into two subtypes:
   • wireless e-call.Very convenient for the owners of houses, as there is no need to pull the wire.After all, most of the call is mounted at the gate (gate), rather than the front door.Actions such device area is 30 to 100 meters, depending on the needs of the customer and the call model.It is also a perfect choice for places where there is no electricity.This doorbell has several advantages: there is no need to hold the wires and drill the wall, sealing, assembly in the absence of electricity.There are several important drawbacks: susceptible to low temperature, can be damaged during the harsh winter, may not work when between its two parts (the first - the gate, the second - in the room) is an obstacle in the concrete or metallic areas, grille or wall.

   

   • Wired device.The most common and standard.Sound is carried out by pressing the button that causes the circuit in the electrical circuit, and a signal is heard.Such calls were mostly Soviet apartments.In our time, he modernized and offers a few tunes to choose from, at least - a quote from the movie.

   

   • benefits of this choice include: simplicity and reliability, the ability to work in virtually any environment.Among the shortcomings just need to stretch the wires and installation only in those areas can be identified where there is electricity.

What choice to make?

Doorbell need to buy on the basis of existing housing.If this is a common apartment, the best thing - electronic wire.For the house in the forest - wireless.Electromechanical options may be used in offices, mechanical and are best suited for business - restaurant, cafe, shop.

Also, do not forget that today the design decisions allow to make a call in a different form and style, and not just a plastic box.