Ajax EN54 FireProtect Smoke Detector (Jeweller), Black - 119922.275.BL1

Introduction to the Ajax EN54 FireProtect Smoke Detector (Jeweller), Black — 119922.275.BL1

The Ajax EN54 FireProtect (Smoke) — model 119922.275.BL1 — is a professional, EN54‑certified wireless addressable point smoke detector designed for indoor use in commercial and institutional fire alarm systems. Combining a dual‑spectrum optical sensor (Blue + IR), the HazeFlow 2 detection algorithm and a patented dust/insect‑resistant smoke chamber, this detector aims to provide dependable detection while reducing false alarms. Communication is handled by Ajax’s Jeweller two‑way encrypted, frequency‑hopping radio protocol with addressable reporting to Ajax PRO/CIE, and the unit ships in a discreet black finish suitable for contemporary interiors.

Key features at a glance

• EN54 certification:Designed for integration into EN54‑compliant professional systems with addressable reporting and monitoring station protocols supported.
• Dual‑spectrum sensing + HazeFlow 2:Blue + IR optical sensors with advanced algorithms and a dust/insect‑resistant chamber to reduce nuisance alarms.
• Jeweller radio:Two‑way encrypted, frequency‑hopping communication with open‑space range up to 1,700 metres.
• Long battery life:2 × CR123A pre‑installed with tool‑free replacement; typical life up to 6 years under standard polling settings.
• Addressable & tamper reporting:Device ID and zone assignment supported; SmartBracket and chamber‑lid tamper alerts.
• Monitoring protocols:Compatible with common monitoring formats such as Contact ID, SIA and ADEMCO 685 for integration with monitoring stations.

Detailed specifications and benefits

• Sensor type:Dual‑spectrum optical (Blue + IR). Using two wavelengths improves the detector’s ability to distinguish smoke particles typical of flaming and smouldering fires, giving faster, more reliable detection across a wider range of fire signatures than single‑spectrum sensors.
• HazeFlow 2 algorithm & chamber design:The HazeFlow 2 signal processing, paired with a patented dust‑ and insect‑resistant smoke chamber, enhances false‑alarm rejection. Environments prone to dust, aerosols or insect ingress benefit from fewer nuisance activations and more actionable events for maintenance and monitoring teams.

• Jeweller two‑way encrypted radio:Frequency‑hopping and encrypted telemetry deliver robust communications and resistance to interference. Addressable reporting to Ajax PRO/CIE ensures each device’s identity and zone information are relayed to the control infrastructure.
• Range & regional bands:Up to 1,700 metres in open space (actual range will vary indoors depending on building materials and layout). Supported frequency bands depend on regional SKU variants; examples include bands such as 866 MHz, 868 MHz and 915–926 MHz ranges.
• Power & battery life:Ships with 2 × CR123A (recommended Huiderui CR123A LiMnO 3 V, 1,600 mAh). Tool‑free battery replacement and typical service life up to six years under standard (36 s polling) settings reduce maintenance frequency compared with detectors that require more frequent battery changes.

• Addressable and zone assignment:The device supports addressable events and zone mapping so administrators and monitoring stations can locate incidents quickly within a facility’s floor plan.
• Monitoring protocols:Compatible with industry monitoring formats (Contact ID, SIA, ADEMCO 685) to integrate with central monitoring stations and alarm receiving centers.
• Tamper detection & mounting:SmartBracket enables tool‑free mounting and removal alerts; an additional tamper switch on the smoke‑chamber lid provides extra protection against tampering or unauthorized access.

• Colour:Black — suitable for modern interior palettes where a discrete appearance is preferred.
• Compliance:EN54 family certified (EN54‑7 referenced); intended for use in EN54‑compliant professional fire alarm systems. Exact normative references, dimensions, weight and environmental limits should be confirmed from the official datasheet for SKU 119922.275.BL1 prior to selection.

Use cases and scenarios where the product excels

The Ajax EN54 FireProtect detector is built to serve professional installations that demand compliance and reliable wireless operation. Typical use cases include:

• Retrofitted commercial buildings:Where running new wires is costly or disruptive, the wireless, battery‑powered FireProtect lets facilities upgrade detection to EN54‑compliant addressable systems with minimal structural work.
• Distributed sites and remote buildings:Small satellite offices, storage buildings and outbuildings benefit from long radio range and addressable monitoring without the expense of wiring back to a central panel.
• Historic or architecturally sensitive interiors:The black, low‑profile housing and wireless installation preserve aesthetics and fabric while delivering professional fire detection.
• Mixed‑use facilities:Retail, offices and community spaces that require monitored, addressable detectors across different zones can use the FireProtect for flexible placement and straightforward zone assignment.
• False‑alarm prone environments:Locations with occasional dust, aerosols or insect presence will benefit from the HazeFlow 2 algorithm and dust‑resistant chamber to reduce unnecessary evacuations and service calls.

How it compares with similar products on the market

Within the professional EN54 detector category, buyers typically weigh detection performance, certification, ease of installation, communications reliability and total cost of ownership. Here’s how the Ajax EN54 FireProtect stacks up in those dimensions:

• Certification & addressability:Many comparable detectors meet EN54 standards, but the FireProtect’s combination of EN54 certification with explicit addressable reporting and common monitoring protocol support makes it a straightforward choice for systems that must meet regulated monitoring requirements.
• Detection technology:Dual‑spectrum sensors are increasingly preferred for better performance across fire types. The FireProtect’s Blue + IR approach aligns with this trend and, combined with chamber protection, offers improved false‑alarm immunity compared to basic single‑wavelength optical detectors.
• Wireless protocol:The Jeweller radio offers robust encrypted, frequency‑hopping communications and a long open‑space range. Compared with generic Wi‑Fi or low‑cost proprietary radios, a professionally engineered two‑way protocol with monitored device states is preferable for mission‑critical fire systems.
• Battery life & maintenance:Up to six years battery life under typical settings is competitive and reduces service visits versus detectors requiring more frequent battery changes. However, wired EN54 detectors still offer continuous power without battery maintenance, so there’s a trade‑off between installation impact and ongoing maintenance.

Conclusion: Why choose the Ajax EN54 FireProtect 119922.275.BL1?

The Ajax EN54 FireProtect smoke detector brings together professional EN54 certification, dual‑spectrum sensing with advanced signal processing, and a robust two‑way wireless protocol to deliver a practical solution for modern fire detection needs. Its strengths are particularly evident in retrofit projects, distributed or remotely located buildings, and environments where nuisance alarms are a concern. With long battery life, addressable monitoring support and tamper protections, it provides a balanced combination of performance, flexibility and manageable maintenance.

If you are specifying or upgrading an EN54‑compliant system and need a wireless addressable detector with a strong focus on false‑alarm reduction and reliable communications, the Ajax EN54 FireProtect (119922.275.BL1) is a compelling option. For exact mechanical dimensions, ingress protection, environmental ratings and any regional frequency band requirements, consult the official datasheet and user manual for the SKU before ordering or installation.