Ajax Sirens

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Ajax: StreetSiren and HomeSiren

Manufacturer and Lineup

The "Sirens" section presents two Ajax models — the StreetSiren for outdoor installation and the HomeSiren for indoor use — from a company founded in 2011 in Kyiv by Aleksandr Konotopskyi, which over more than a decade has become Europe's largest security-system manufacturer, protecting more than 4.5 million people across over 180 countries.

A Siren's Role and Two Models

A siren is one of the key devices in a security system, and its job isn't limited to simple notification: a loud sound signal combined with LED flashes instantly scares off an intruder who was counting on an unnoticed break-in, while also drawing neighbors' or passersby's attention to the event unfolding at the site — a factor that significantly reduces the odds of the crime being carried through.

The StreetSiren is built for outdoor installation — on a house facade, a gate, or a fence — and delivers volume in the 85-113 dB range at one meter, with precise level adjustment available through the Ajax app depending on a site's specific conditions and local noise-level regulations.

The HomeSiren is designed for indoor installation and has a terminal for connecting an additional LED indicator — a feature that lets the siren integrate with a site's existing lighting or indication system for a more noticeable visual signal during an alarm.

Technical Advantages and Choosing

Both sirens serve a dual function in a security system: an instant reaction to an event (sound and light right when a sensor triggers) and parallel notification of the owner and monitoring company through the hub — the owner learns of the alarm on their smartphone at the same moment the siren has already started scaring off the intruder at the site.

The StreetSiren's housing is protected against precipitation, direct sunlight, and temperature swings, allowing year-round outdoor operation without risk of failure from weather conditions typical of Ukrainian winters or summers.

Both models run on Ajax's own Jeweller protocol, providing stable, jamming-resistant communication with the hub — a characteristic critically important specifically for a siren, which must trigger reliably even if an intruder tries to block the security system's radio signal.

Standalone battery power lets sirens be installed anywhere on a site without depending on a nearby outlet — a practical advantage for the StreetSiren, usually mounted high on a facade where running a power cable would be inconvenient and costly.

Both sirens report battery charge level and correct operation to the hub, so the owner gets advance notice of the need to replace the power cell, rather than discovering the siren has failed during an actual alarm, when its silence could prove costly.

In practice, the most effective site protection involves using both models together: the StreetSiren for maximum psychological impact on an intruder while still approaching the building, and the HomeSiren to duplicate the signal indoors, where outside sound may be partly muffled by walls.

Ajax systems built on these sirens became the world's first wireless security system certified to the European EN 50131 standard's highest tier, Grade 3 — a certification extending to the entire equipment ecosystem, including notification devices.

The choice between the StreetSiren and HomeSiren comes down to installation location and purpose: the StreetSiren for the outdoor perimeter and maximum psychological effect on a potential intruder before they even enter the building, the HomeSiren for supplementary notification inside the site or integration with light indication.

Choosing specifically within the "Sirens" section means comparing Ajax's products against other security-system manufacturers featured here on practical criteria: signal loudness, installation location (indoor or outdoor), enclosure weatherproofing, and compatibility with an existing hub.

We'll Help You Select a Model for Your Site

If your project requires reliable intrusion notification with maximum psychological impact on an intruder, Ajax sirens deserve first consideration thanks to their combination of a loud sound signal, light indication, and interference-resistant radio communication. Our consultants will help you select the specific model for your site, and our delivery service will get the chosen equipment to you promptly anywhere in Ukraine.

💎 The cheapest ajax sirens in the store

As of september 2026 year, the cheapest ajax sirens in our store are:

Product Price
Siren Ajax HomeSiren 2 179.00 ₴
Ajax StreetSiren street siren 4 349.00 ₴

CL-0000032
0.0
Availability: 5 item(s)
4 34900 
Backup powerBuilt-in 2 Ah Li-ion battery Colorwhite Material of executionPlastic Weight528 g. ColorWhite Protection classIP55 StateNew Supply voltage12 V⎓, 1.5 A Country of originUkraine Country of originUkraine
CL-0000033
0.0
Availability: 5 item(s)
2 17900 
ColorWhite Protection classIP50 StateNew Colorwhite Material of executionPlastic Weight97 g Country of originUkraine Country of originUkraine Guarantee24 months ManufacturerAjax
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