Visual Alarm

Visual alarm

Optical alarm systems are suitable for many applications. Especially in environments where acoustic signals are too loud or difficult to hear. A visual alarm is a warning signal that is transmitted via:

is broadcast to elicit a visual response. Like the silent alarm, for example, it should reach all employees and affected persons immediately.

alerting software

Lighting and operation

A visual alarm often consists of different colored lights mounted on a wall or ceiling. They can be battery operated or connected to the mains. Once the alarm is triggered, the lights can be on continuously or flash/pulse at a specific frequency. Visual alarms are used in a variety of environments, including nursing homes, workplaces, and public spaces such as airports and train stations.

The effectiveness of a visual alarm depends on the positioning of the signal illumination. To achieve the best performance, the system must be configured according to the spatial conditions.

For example, to ensure the best visibility, the light intensity or brightness can be adjusted for different spaces. The flashing frequency must also be adjusted to the size and complexity of the room. This allows for quick detection of potential threats.

The effectiveness of visual alarms depends on variables such as location, brightness and color contrast with the environment. It is important that they are installed in highly visible areas. When choosing signal colors, care must be taken to ensure that they stand out sufficiently from the surroundings. This will make the alarm stand out enough to be noticed when it is activated.

Tasks, explicit areas of application and advantages

The primary purpose of the visual alarm is to visibly draw attention to a danger. This can be e.g. fires, forced entry or other emergency situations. In principle, all persons concerned benefit from this. However, the visual alarm proves to be particularly effective for people with impaired hearing.

This applies both to the hearing impaired and to people who wear hearing protection at work, such as in the steel industry. They often do not perceive acoustic warning signals clearly. Therefore, they can benefit greatly from a visual alarm system and be informed of hazards in good time.
Furthermore, a visual alarm attracts attention without directly panicking people. An audible alarm is also very effective in informing people about a danger as quickly as possible. However, a loud signal increases the stress level more than a visual signal.


Thus, a visual alarm can be particularly helpful in commercial establishments as well as nursing homes or educational institutions. There are usually a lot of people in these places. With a visual alarm, nursing home residents have more time to prepare and adjust to the evacuation without being startled by sudden noises. Finally, a visual alarm system can help facilitate evacuations. It does not emit loud audible signals that can cause general panic.

Visual and audible alarm - an efficient synergy

Visual alarms provide an additional level of security and protection and are an important component of modern alarm systems. In conjunction with conventional audible alarms, visual alarms provide an effective pre-warning system.
Visual alarms serve as the first warning stage in multi-stage alarm concepts before the audible alarm sounds. This gives people more time to prepare for a hazard and take appropriate action.

For example, visual alarms can be used to warn people of a fire before the audible fire alarm sounds. Overall, visual alarms can play an important role in multi-stage alarm concepts. They first provide a warning before the audible systems are activated. This concept allows to react appropriately and act safely while there is still time.

Linking with IDERI note

A visual alarm can also be linked to our IDERI note notification software. As part of a modern alerting plan, this not only provides visual signals as a warning.

With IDERI note, all employees receive a push message directly on their screens, for example. In doing so, they receive all relevant information about the emergency situation. As a result, all affected persons can react even better to the hazardous situation.


Questions we are often asked

IDERI note is licensed according to the Concurrentuser license model. Every active connection to the server is counted here. This means that the maximum number of simultaneous connections should be licensed.

Yes you can! IDERI note contains 5 desktop and 2 mobile licenses, which you can use without purchasing an additional license.
Either for testing purposes, or if the number is sufficient for productive operation.

50,000 clients per IDERI note server are possible, depending on the server hardware.

The administration interface offers German, English and French as language selection. On the receiver side, Croatian, English, French, German, Polish, Portuguese, Russian, Slovenian, Spanish and Italian are supported.

Yes, you can, for example, insert your company logo, adjust the font, size and color, and determine the position of the pop-up window and the ticker.
In this video we show you how it works.

IDERI note can be used without Active Directory with some restrictions. More information can be found in the IDERI note help. 

  • Windows computers,
  • Terminal servers (thin clients),
  • Smartphones and tablets (IOS and Android),
  • Linux (Wine).

Yes, mobile devices running iOS/iPadOS or Android are supported since version 3.3 ! If you would like to have more information about this, feel free to contact us!
+49 711 3416 7060

Yes, IDERI note is fully terminal server compatible. Individual client instances are started automatically for the users, so that only individual users can be notified.

Active Directory objects such as groups, users and computers are used as addressees. Optionally, recipient lists can be created.

  • Buzzer/External Hardware,
  • Commandline /Batch,
  • Administration Interface,
  • User Interface/Quickadmin,
  • Rest-API,
  • SDK,
  • Web Interface.

Yes, you can change active messages at any time. You can track all changes via revision security.

Yes, messages can be retracted at any time and will disappear from user screens immediately.

Yes, messages on the lock screen and on the login screen can be activated for each message.

Yes, IDERI note messages can be sent to multiple users, computers, groups or “anyone”.

IDERI note can display messages in full screen mode. In addition, the workstation can be locked.

Yes, IDERI note Client can be installed using any software distribution. A customization tool for this is included in the delivery.

Let us optimize your it

Simply contact us here

Contact us now

By submitting this request, you agree to the processing of the data described in the privacy policy.