Introduction: Ajax StreetSiren DoubleDeck Fibra and its key features
Ajax StreetSiren DoubleDeck Fibrais a professional wired indoor/outdoor siren built for integration with Ajax Superior hubs (Hub Hybrid 2G / Hub Hybrid 4G). Designed for installers and property managers who need a reliable, high‑output alarm device, the StreetSiren DoubleDeck Fibra combines a powerful piezo acoustic signal (85–113 dB at 1 m) with a bright LED frame for visual alerting. It communicates over the Fibra wired two‑way protocol on a 4‑core cable (up to 2,000 m on U/UTP Cat.5), supports tamper detection, and includes a rechargeable LTO backup battery to maintain alarm signalling during power outages. The unit is IP54 rated and intended to be mounted 2.5 m or higher for best performance.
Detailed specifications and benefits
The StreetSiren DoubleDeck Fibra packs specifications that make it attractive for professional alarm installations. Below is a breakdown of the key technical attributes and the practical advantages they provide.
- Compatibility:Works with Hub Hybrid (2G) and Hub Hybrid (4G) — ideal for sites already using Ajax Superior hubs.
- Communication:Fibra wired two‑way protocol — offers stable, monitored communication between the siren and the hub.
- Cable/line:Uses a 4‑core cable with runs up to 2,000 m on U/UTP Cat.5 — simplifies installations across large properties without repeaters.
- Remote configuration:Full configuration and monitoring via Ajax apps (PRO or user with permissions).
Benefits: Fibra’s two‑way protocol allows the hub to verify device state and delivery, reducing false positives caused by wiring faults. Long cable runs mean fewer junctions and flexible placement for warehouses, retail complexes or estate perimeters.
- Alarm type:Piezo acoustic alarm combined with a bright LED frame for visual signalling.
- Sound level:Adjustable between 85 and 113 dB measured at 1 m — loud enough for industrial and commercial sites.
- Frequency:Approximately 3.5 ± 0.5 kHz — tuned to be attention‑grabbing while remaining compatible with common alarm expectations.
- Alarm duration:Configurable from 3 seconds to 3 minutes to suit local regulations and operational preferences.
Benefits: The combination of sound and light provides both audible deterrence and clear visual notification. Configurable volume and duration let integrators adapt the siren to environments where lower decibels are required at night or higher impact is needed in noisy environments.
- Operating voltage:7–27 V DC (nominal 24 V).
- Battery:Rechargeable LTO 2.4 V, 1500 mAh backup battery.
- Current draw:Peak 67 mA, maximum 45 mA, quiescent 2 mA, average 65 µA.
Benefits: Low average and quiescent current helps minimise continuous load on the system while a dedicated LTO backup battery preserves signalling capability during mains failures — a critical requirement for maintaining site protection until the alarm system is serviced or power is restored.
- IP rating:IP54 — protected against dust ingress sufficient for outdoor urban and semi‑exposed locations and against water splashes.
- Operating temperature:−25 °C to +60 °C — suitable for a wide range of climates.
- Dimensions and weight:198.5 × 198.5 × 59 mm; 516 g.
- Colours:Available in Black and White to match façade or interior palettes.
- Recommended installation height:2.5 m or higher for optimal deterrence and tamper resistance.
Benefits: The weather‑resistant housing and broad operating temperature range make the DoubleDeck Fibra well suited to many outdoor and semi‑outdoor applications without requiring additional enclosures.
Use cases and scenarios where the product excels
The StreetSiren DoubleDeck Fibra is especially well suited for professional installations where reliability, long cable runs and robust signalling are priorities. Typical scenarios include:
- Commercial premises:Retail stores, shopping centres and office parks where a visible and audible deterrent can protect property and deter intruders.
- Industrial sites and warehouses:Large footprint locations benefit from Fibra’s long cable distances and the siren’s high output to cover noisy environments.
- Perimeter and gated areas:Install on external walls or gate posts (at recommended heights) to provide immediate onsite alerting and to warn off intruders.
- Residential estates and apartment blocks:Shared‑system installations using Ajax Hybrid hubs can manage multiple wired sirens for building‑wide alerts.
- Construction sites and temporary installations:When a reliable wired solution is preferred over battery‑only devices, the LTO backup battery and sturdy build offer dependable performance.
Because the device supports remote configuration and status monitoring via Ajax apps, security integrators can tailor alarm profiles to site needs, schedule maintenance, and receive tamper notifications for quick response.
Comparisons with similar products in the market
When comparing the StreetSiren DoubleDeck Fibra to other sirens, consider three axes: communication method (wired vs wireless), installation scale, and environmental suitability.
Wireless sirens provide flexibility and ease of retrofit, but wired devices like the DoubleDeck Fibra offer consistently reliable communication, no dependence on radio conditions, and the ability to run long cable distances without repeaters. For large commercial or industrial sites where a single point of failure is unacceptable, Fibra’s two‑way supervised link and long runs (up to 2,000 m on Cat.5) are decisive advantages.
Against generic wired sirens, the DoubleDeck Fibra stands out for its integration with Ajax Superior hubs, LED frame visual signalling, configurable alarm durations, and the inclusion of a rechargeable LTO backup battery. Many basic wired sirens lack two‑way supervision and remote configuration, or they offer shorter cable distance ratings — making the Ajax device preferable for professional installations that demand monitoring and remote management.
Customer feedback and installer impressions
While individual user reviews will vary by installation and environment, aggregated feedback from installers and early adopters highlights several consistent positives:
- Reliable integration:Installers commonly note the straightforward pairing and configuration with Hub Hybrid systems and the convenience of remote adjustments through Ajax apps.
- Effective deterrence:The combination of high decibel output and a bright LED frame is regularly cited as an effective visual and acoustic deterrent, particularly for street‑facing installations.
- Good build quality:Contractors appreciate the IP54 build and recommended mounting height for tamper resistance and longevity in outdoor conditions.
- Backup readiness:The rechargeable LTO battery is valued as a practical safeguard for signalling during power outages, reducing false negatives from mains failure.
Potential considerations mentioned by integrators include planning for cable routing in retrofit scenarios and ensuring the recommended mounting height is achievable for visibility and tamper protection.
Conclusion: why choose the Ajax StreetSiren DoubleDeck Fibra
The Ajax StreetSiren DoubleDeck Fibra is a compelling option for professional security installations that require dependable wired signalling, long cable runs, and remote management. With an 85–113 dB acoustic range, visual LED frame, tamper monitoring, and a rechargeable backup battery, it balances power, flexibility, and resilience. Its Fibra two‑way communication and compatibility with Ajax Hub Hybrid units make it especially suited to integrators and end users demanding monitored performance across commercial, industrial and residential projects. At a suggested retail price of $79.99, it represents a practical, cost‑effective choice for a high‑quality outdoor/indoor wired siren that is ready for modern, app‑managed alarm systems.
