Tech specs

StreetSiren Fibra

Wired siren for indoor and outdoor use


Compatible hub models


Fibra communication technology

Proprietary wired communication technology. Fibra combines the reliability of wires with the freedom of radio connection.
It features:
  • Two-way communication.
  • Advanced anti-sabotage.
  • Instant notifications.
  • Remote configuration via the Ajax apps.

Line connection

4-core cable

Fibra line length

up to 6,500 ft
When using the U/UTP cat.5 twisted pair.

Encrypted communication

Key features

Alarm type

acoustic and LED
Buzzer and LED frame.

Alarm volume

from 85 to 113 dB at a distance of 3.3 ft
Adjusted by PRO or user with admin rights in the Ajax app.

Alarm duration

from 3 s to 3 min
Adjusted by PRO or user with admin rights in the Ajax app.

Siren sound frequency

3.5 ± 0.5 kHz


The siren makes a special sound to notify that the opening detectors are triggered when the system is disarmed.

Events indication

  • Alerts.
  • Entry/exit delays.
  • Security mode.
  • Security mode changing.
  • After-alarm indication.


The siren is designed for indoor and outdoor use. Recommended installation height is 8.2 ft and higher.

Anti-sabotage protection

Tampering alarm

Alerts of attempts to detach the siren from the surface or remove the mounting panel.

Protection against forgery

Device authentication

Power supply

Fibra line power supply

7−30 V⎓, up to 1.2 W
The siren is powered by the control panel.



7.81″ × 7.81″ × 2.28″


20,28 oz

Operating temperature range

from −13°F to 140°F

Operating humidity

up to 95%

Protection class




Complete set

StreetSiren Fibra
SmartBracket mounting panel
Installation kit
Quick Start Guide

Additional information

Compliance with standards


24 months

User manual