Radio doorbell: the types and benefits of wireless devices

A cordless wire and electrical connection is a very convenient invention. Unlike the usual, the radio doorbell is much easier to install, but has its drawbacks. Let's see what kind of device it is, what types of it exist and what to look for when choosing.

Principle of operation

How a wired call works is shown in the picture:

From the button located behind the door, the wires go to the speaker inside the apartment and are connected to the electrical grid. When you press the button, the circuit closes and the signal sounds.

Such a scheme cannot be drawn to a radio call, since invisible radio waves play the role of wires in it.

The device receives power from conventional batteries or a battery.

But there are also models with a combined type of power supply, when a battery is inserted into the button body and the speaker located inside is connected to the electrical network.

Types of radio calls

First of all, these devices differ in the range of the signal. This is the first thing to look at when buying, if you need a bell to install on the gate of a private house. The instruction states that this parameter should be at least 20% greater than the distance from the gate to the speaker in the house.

Note! Keep in mind that metal, brick and concrete structures in the signal path partially overwhelm it. Therefore, the range is better to choose with a large margin.

Street and apartment models

Depending on the operating conditions, the door radio bell can be street or residential:

• Apartment It is a conventional device with a button without any weather protection.
• Street the same calls both outside and inside must be protected from precipitation, dust, exposure to sunlight and temperature changes. To do this, they are made of durable, resistant to corrosion and moisture materials and equip the visor.

Models with additional items

Standard equipment includes one button and one speaker. But the owners of large apartments and country houses are in great demand calls with two or more speakers, or with a few buttons.

• It is convenient to have additional speakers in the case when there are rooms in the apartment where the signal from the front door is not heard. These can be rooms on the second floor or a workshop.

• And for houses with a large territory and several entrances to the plot, you may need several call buttons for each of them. The speaker may also not be one.

Multifunction models

Almost all modern radio calls have a set of several signals to choose from, and some have a function that allows you to download any melody from a flash card, mobile phone or computer.

Also, wireless devices may have the following additional functions:

• LED lights;

• Adjusting the ringer volume and turning it off;
• SMS sending function on the phone when you press the call button;
• Video-eye Depending on the model, it can work continuously or turn on only when the call button is pressed. Also, depending on the model, the image from it can be transmitted either to the monitor, combined with the speaker, or to the phone of the owner of the house;

• Motion Sensor notifies the owners of the arrival of guests before the sound of the signal. And with a video camera, it can track and record activity at the entrance to the apartment.

Of course, the more this device can do, the higher its price.

The most "advanced" device operating on the use of radio signals is the intercom. In addition to the call button and speaker, it can be equipped with all the listed elements, as well as a built-in microphone and monitor, which allows owners to see the visitor and communicate with him remotely.

Pros and cons of wireless calls

The advantages of door radio calls include the following facts:

• Lack of wires and, as a result, simplicity of installation;
• The ability to reinstall the elements of the device in a more convenient place;
• Autonomous power supply that does not depend on the availability of power supply or its interruptions;
• Multifunctional;
• Diverse and attractive design, the possibility of selecting a call in appearance for any interior or exterior.

Among such devices you can find calls of standard performance, as well as very original ones.

Unfortunately, these devices have disadvantages. And they are found more often than the budget model chosen.

Among them:

• Unreliable fastening. We are talking about Velcro and double-sided tape, which are supplied with cheap calls. The sticky coating dries quickly and stops holding the device in place. In the fall, it can be damaged, "incompatible with life." In addition, velcro calls are often stolen or simply knocked out of hooliganism.
• The need for frequent recharging or replacement of batteries.

• Disruption of work if moisture or dust enters the work area.
• Inability to work at very low temperatures.

For reference. The operating temperature range of such calls is usually in the range from +50 to -15 degrees.

The most reliable are similar devices of European manufacturers. Appeared and very high-quality domestic models. Quite good calls can be found among the Chinese, but this is a “roulette game”. They are best purchased not in the store, but on the Internet sites, having carefully reviewed the reviews.

Installation

To install a radio call, you do not need to call the wizard, everything can be done by hand.

Yes there is nothing to do:

• For mounting on the screws in the device case there are special holes. Through them, marks are made on the wall, at the planned points, holes for the dowel are drilled into which fasteners are screwed. If the base is wooden, then the dowels are not needed.

• If the attachment is on velcro, they simply remove the protective layer from it and press the device against a flat surface: the casing or wall next to the door. It is also possible to the door itself, if the platband is shaped, and the adhesive tape does not stick to the wall covering material.

But such a mount is very unreliable and short-lived. Therefore, we suggest using the instructions below and fix the device so that it cannot be accidentally or intentionally spoiled.

Stage image	Job Description
	Cut out of plywood, chipboard or other durable material base for attaching the button to its size.
	Prepare fasteners corresponding to the material of the walls, and drill holes for them in the plank.
	Open the housing cover.
	Get the chip and other "stuffing" call.
	Fix the base on the wall with screws or dowels-nails.
	Gently screw the back of the instrument to the base.
	Replace the IC chip.
	Close the button cover.

Everything, now your call is safe - it will not be stolen, it will not fall off on its own from frequent use.

Conclusion

The doorbell radio bell is a very convenient and practical device. To install it, you don’t need to make walls or pull wires across the yard from the gate to the house. It can be both very simple, performing the only function of a signal about a guest standing behind the door, and multi-functional.

All this is described in detail above. A review of popular models in the video in this article will allow you to evaluate the variety of such devices and choose the best model for yourself.