The light and sound annunciator is able to become a convenient means of transmitting light and sound signals in case of emergency in buildings of various types and purposes. Light and sound annunciators provide timely signals about the beginning of evacuation, remaining active throughout the day, functioning from a standard power supply network.
Fields of application
Various models and modifications of light and sound annunciators are actively used to ensure safety at industrial facilities, in trade establishments, entertainment and public areas.
Each device must necessarily correspond to the features and purpose of the room in which it is installed. Usually a suitable sounder is selected based on the noise level that is available in the room. Also takes into account the type of activity of the people who are in it.
Operational Features
Before you install the light-sound siren, you must determine the mode in which it should work. This can be a general, simplified or special mode of operation. The latter option is most often used at security posts and in medical institutions, in control rooms, when the fire alarm system is under the control of specially trained personnel.
In standard mode, sirens work in public, residential and rented premises. To ensure comprehensive security, several devices are mounted on opposite walls, connected to an alarm system and operate from a conventional power supply network.
Mounting
A light and sound annunciator (220V) can join the security system both by soldering and by the standard screw method provided by default. The input and output wires are connected through the siren terminals by their duplication.
The operation of the siren in standby mode involves installation, in which communication control is performed by connecting wires to the final element. Usually this element is a resistor with a diode. When installing sirens, external connection of diodes is unacceptable.
Types of sirens
The fire alarm system may contain a number of light and sound annunciators of various models and modifications. Currently, the most common models are round and square warning devices.
If we talk about the possibilities of operation and design differences, then there are:
- external type of sirens that provide security in open areas;
- indoor sirens that are widely used for indoor use.
Regardless of the type, such a device as a light and sound siren can be installed on objects with fire and burglar alarms, not only to give light and sound signals when evacuating people, but also if necessary, to give certain signals to personnel.
Standard and combined models
Despite the relatively limited functionality that is dictated by the purpose of standard sirens, at present there are a sufficient number of various modifications of devices for this purpose. Modified sirens are intended for use in the most innovative integrated security systems and modern fire alarms.
Among the main advantages that distinguish the light-sound combined siren, it is worth highlighting the modern design, the presence of conditions for installation both outdoors and indoors, as well as the ability to issue sound and light signals at the same time. This, in turn, becomes extremely important for ensuring safety at facilities with high noise and smoke levels.
Light and sound annunciator: price
The cost of light-sound annunciators of domestic production belongs to the average price range. The price of the simplest models varies from 70 to 150 rubles. The cost of combined and modified devices can reach 350 rubles, which is fully consistent with their functionality.
Naturally, the same light and sound annunciator may differ in different cost depending on the pricing policy of a particular trading network. However, for most consumers, the price of domestic and imported devices is still more than acceptable. Therefore, such security systems are available to a wide range of interested customers.
Light and sound annunciator "Mayak"
If we talk about the most accessible, popular models for the domestic consumer, then the Mayak light-sound devices come out in first place. Today, such relatively inexpensive, truly reliable, functional, and durable systems are widely used in domestic industrial, commercial, entertainment, exhibition, and public facilities. If necessary, “Mayak” brand sirens can be equipped with a fire alarm system in residential premises.
The Mayak announcers do an excellent job of alerting people to an emergency situation using signals that can simultaneously affect a person’s vision and hearing. Devices of the Mayak brand cope with this task perfectly, which is confirmed by practice and numerous expert reviews.
In the event of an emergency, devices in this category light up with a bright pulsating light that illuminates a special alarm indicator or direction of movement. The light signal is accompanied by a loud siren distinctly audible under conditions of increased noise. Currently, such sirens are in demand not only when it is necessary to ensure security at enterprises, but also among private individuals.
However, giving preference to the Mayak light and sound annunciators, you need to understand that for their effective operation, the selection of the correct type of device, corresponding to the features of the existing alarm system, is required. It is also necessary to pre-calculate their sufficient number, starting from the conditions and characteristics of the room. Therefore, the approach to the choice of sirens should be wisely, preferably based on the advice and opinions of experienced professionals.