Light and Sound Alarms

Sound and light alarms can be used in fire alarm systems and evacuation systems. If necessary, the alarm activates a backlight in combination with an audible signal or even vocalizations. The sound signal propagates approximately 80 dB at a distance of 1 m. The alarm can be installed either indoors or outdoors.

A sound and light alarm consists of a plastic housing with openings for the audible signal. A translucent plastic cover is located on the visible outer surface, under which LEDs or other light sources are mounted. The housing itself houses an electronic circuit board that transmits the light and sound signals.

Sound and light alarms do not require high voltage, typically between 9 and 27 V, so installing a sound and light alarm will not entail significant energy costs. The design and construction of the sound and light alarm allow for its use in a variety of conditions and installation where aesthetics and safety are most beneficial. This applies to indoor or outdoor use, as well as vertical or horizontal placement. Regarding the alarm design, it's important to note that the sound and light alarm is resistant to dust and moisture. However, when installing the alarm in a hostile environment, such as outdoors, it's a good idea to take additional protective measures, such as installing a water-repellent canopy over it.

The purposes for which a sound and light alarm can be used are quite varied. We previously discussed its use in the event of a fire or evacuation. It's worth noting that the use of light and sound can even be configured to detect unauthorized entry, structural damage, or even unauthorized opening of the alarm housing. If the alarm housing is opened by unauthorized persons, a special tamper sensor (a tamper switch) is triggered. The presence of a tamper sensor and proper configuration of the alarm itself will alert the property owner, security personnel, and family members, thereby saving property and possibly even lives.

Individual sound and light alarm models may have customized parameters, including external features and functionality. It's worth noting that alarms may also feature text indicating the correct evacuation route. When placing alarms, it's important to ensure that the evacuation signal is accessible to all people at the facility, in other words, that sound and light propagate properly during an alarm.

Modern lifestyles make it easy to visit a wide variety of locations where a critical situation can arise, including airports, water parks, hypermarkets, and many others. To ensure additional safety, it's essential that the alarm be effective for both hearing and sight, and, if possible, that the security device assists in finding the correct evacuation route. Therefore, many business owners are resorting to installing visual and audible alarms.