Ajax HomeSiren Fibra Black Wired Indoor Siren with LED Indicator

Ajax HomeSiren Fibra Black - Wired Indoor Siren

The Ajax HomeSiren Fibra Black is a wired indoor siren built for the Ajax Fibra ecosystem, combining the tamper-resistance and reliability of a cabled connection with the smart configurability of the Ajax app. Designed to sit neatly on a wall or ceiling in a home, office, or retail space, it uses Ajax's secure Fibra communication protocol to exchange data with a compatible Ajax hub over standard U/UTP cat.5 cabling, giving installers a dependable link that isn't subject to wireless interference. Its discreet black housing and integrated LED indicator make it a practical option for anyone wanting fast, audible confirmation of alarms, entry delays, or mode changes without relying on batteries.

Key Features

• Wired Fibra connectivity for a stable, low-latency link to the hub over cat.5 cable, with a supported run of up to roughly 2,000 metres.
• Loud alarm output with an adjustable sound level of up to 105 dB, enough to alert occupants and deter intruders.
• Built-in LED indicator that can show security mode status, entry/exit delay countdowns, and post-alarm states.
• External LED connector so an additional indicator light can be wired in for extra visibility.
• Anti-tamper protection that triggers an alert if the unit is pried from its mounting bracket or the housing is opened.
• SmartBracket mounting panel for straightforward wall or ceiling installation and cable routing.
• Remote configuration of volume, alert types, and behaviour via the Ajax mobile and PRO apps.
• Compact, low-profile design finished in matte black to blend into most interiors.
• Powered directly from the security line, removing the need for internal batteries.

Where It Fits

This siren suits homes, apartments, small offices, retail units, and warehouses where a wired alarm connection is preferred over a wireless device, whether for regulatory reasons, cable runs already in place, or simply added resilience against jamming. It is commonly installed alongside Ajax Fibra motion, door, and glass-break detectors on the same cable line, giving the whole system a unified, wired backbone while still being managed through the same Ajax app used for wireless devices.

What's in the Box

• Ajax HomeSiren Fibra Black unit
• SmartBracket mounting panel
• Installation and mounting kit (screws, wall plugs, cable entry points)
• Quick start guide

Frequently Asked Questions

Does the HomeSiren Fibra need batteries?
No, it is powered directly from the Fibra line via the connected Ajax hub, so there are no batteries to replace.

Can it be installed outdoors?
No, this model is designed for indoor use only; an outdoor-rated Ajax siren should be used for exterior installations.

Which hubs is it compatible with?
It connects to Ajax hubs that support the Fibra wired protocol; check current hub compatibility before purchase, as Fibra devices work with specific hub generations only.