Introduction to the Ajax FireProtect 2+ SB and its key features
Ajax FireProtect 2+ SB (Black)is a wireless combined smoke and heat detector designed for standalone use or integration with Ajax security hubs via the Jeweller two-way encrypted radio protocol. Engineered to detect both smouldering and flaming fires, this detector blends dual-spectrum optical smoke sensing with Class A1R heat detection to reduce false alarms while ensuring timely alerts. The SB variant ships with sealed, non-replaceable lithium batteries rated for up to 10 years and includes a built-in piezo siren (approximately 85 dB) plus tamper protection. For installers, monitoring centres and homeowners seeking low-maintenance, professional-grade fire detection, FireProtect 2+ SB aims to offer reliable detection, simple installation and cloud-enabled management through Ajax mobile and web apps.
Detailed description of specifications and benefits
Below are the key specifications at a glance, followed by how each element delivers practical benefits.
- Sensor type:Dual-spectrum optical smoke + Class A1R heat.
- Battery:Sealed lithium, non-replaceable; up to 10 years.
- Siren:Built-in piezo, ≈85 dB (typical measurement conditions).
- Alarm thresholds:High temperature ≈ 64 °C; rapid rise ≈ +10 °C in 1 minute (approx.).
- Radio:Jeweller two-way encrypted GFSK; regional bands (868/915/921 MHz).
- Radio range:Up to ≈1,700 m open space (market & environment dependent).
- Tamper:Lid & removal tamper switches.
- Mounting:SmartBracket mounting plate included.
- Environmental limits:Operating temperature 0 to 50 °C; humidity up to 80% RH (non-condensing); IP20—indoor use.
Dual-spectrum optical sensing uses two wavelengths to distinguish between real smoke particles and common nuisance aerosols such as steam or cooking vapours. This reduces false alarms that often plague single-spectrum optical detectors. The addition of Class A1R heat detection provides two complementary detection modes: a high temperature threshold (around 64 °C) and rapid temperature-rise detection (~+10 °C/min). Together, these allow the device to respond to both smouldering fires (slow smoke generation) and fast flaming fires, improving the chance of early, accurate warning.
The SB model is built with sealed non-replaceable lithium cells rated up to 10 years of operation. For many users—especially property managers and installers—this means minimal maintenance visits and predictable lifecycle planning. The sealed design also reduces the risk of accidental battery mishandling and keeps the detector sealed against tampering. Note: because the battery is non-replaceable, the unit will be replaced at end of life; ensure you follow local guidance for disposal and replacement planning.
The built-in piezo siren delivers approximately 85 dB under typical test conditions, providing a loud local alert to occupants. The detector also includes tamper switches for lid and removal, notifying the system or hub if the device is opened or detached. Ajax’s patented dust- and insect-protected smoke chamber and HazeFlow signal processing help maintain reliable sensing performance over time and further reduce false alarm risks in real environments.
FireProtect 2+ SB communicates via the Jeweller two-way encrypted radio protocol (GFSK), allowing encrypted alarm reporting, remote configuration and status monitoring through Ajax mobile and web apps. With a quoted open-space RF range up to about 1,700 meters (environment dependent), the detector can serve installations in many single-building and campus-style deployments when paired with an appropriate Ajax hub. This level of connectivity enables integration with alarm receiving centres, push notifications to users and remote configuration for installers.
Use cases and scenarios where the FireProtect 2+ SB excels
This detector is suitable for a wide range of indoor applications where wireless integration, low maintenance and reliable detection are priorities:
- Residential properties:Homes and apartments benefit from the detector’s reduced nuisance alarm rate, long battery life and loud local siren. The sealed battery suits customers who prefer “fit-and-forget” solutions.
- Rental and holiday properties:For short-stay and rental accommodation, long battery life and remote monitoring reduce the need for frequent onsite maintenance visits.
- Small businesses and offices:Retail stores, small offices and professional suites can use the detector as part of an integrated Ajax system, with alerts forwarded to managers or a monitoring centre.
- Managed buildings and multi-unit developments:Installers and property managers appreciate the SmartBracket mounting, tamper alerts and Ajax cloud management for centralized monitoring across multiple units.
- Environments prone to nuisance alarms:Kitchens or bathrooms where steam and cooking fumes are common can benefit from the dual-spectrum optical sensor and HazeFlow processing, which help distinguish harmless aerosols from real smoke.
Practical considerations: the unit is IP20-rated for indoor use and operates between 0–50 °C with humidity limits, so placement and local building codes should be considered. Always follow local fire regulations and relevant certification requirements for commercial installations.
Comparisons with similar products in the market
When comparing FireProtect 2+ SB to other detectors, a few practical differentiators stand out:
- Versus basic optical or ionization domestic detectors:The FireProtect 2+ SB offers two sensing technologies plus smart, remote connectivity and tamper reporting. Basic domestic units typically lack network integration, remote alerts and professional monitoring capability.
- Versus other smart detectors (e.g., consumer smart home brands):Consumer smart detectors (from major smart-home brands) often combine cloud features and mobile alerts, but may not offer the same professional encrypted radio connectivity, industry-standard monitoring integration or the long sealed battery life engineered for low-maintenance professional installations.
- Versus other Ajax FireProtect variants:The FireProtect family includes heat‑only and CO variants as well as smoke+heat models. The SB (sealed) SKU trades replaceable batteries for a sealed 10‑year cell—ideal for low-maintenance scenarios. If you prefer replaceable batteries for longer incremental service life without replacing the entire unit, consider non-SB variants.
- Trade-offs:The sealed battery offers convenience but means the whole unit is replaced at end-of-life; other detectors with replaceable batteries avoid unit replacement but require periodic servicing. Also, IP20 means indoor use only—some specialty detectors provide higher environmental protection for industrial or outdoor applications.
Customer testimonials and typical user feedback
Below are representative comments that reflect common feedback themes from installers and end users for detectors with this feature set:
- "Easy to install and configure via the Ajax app — minimal setup time and good signal reliability when paired with a hub."
- "We saw far fewer false alarms after switching to the dual-spectrum unit, especially in units near kitchens or bathrooms."
- "The 10‑year sealed battery is a real advantage for our rental properties — we don’t need to change batteries every year."
- "I like the built-in siren and tamper notifications; it integrates cleanly into our monitoring workflow."
- "The only downside is the sealed battery — when it finally reaches end of life we’ll need to replace the detector rather than swapping a cell."
Note: these are representative sentiments common to detectors with sealed long-life batteries, dual-spectrum smoke sensing and professional wireless integration. Specific user reviews for the ITM000986 SKU should be consulted where available to reflect verified buyer experiences.
Conclusion: why the Ajax FireProtect 2+ SB is a strong choice
The Ajax FireProtect 2+ SB combines modern sensing technology, long-life sealed power and professional wireless integration to deliver a low-maintenance, reliable solution for indoor fire detection. Dual-spectrum optical sensing and Class A1R heat detection reduce nuisance alarms while improving the likelihood of early detection across a range of fire scenarios. Built-in siren and tamper alerts provide local and system-level assurance, and encrypted Jeweller communications make the detector suitable for monitored installations managed by installers or alarm receiving centres.
For homeowners, property managers and installers who prioritise dependable detection, fewer service visits and secure, remote management, the FireProtect 2+ SB represents a compelling balance of performance and convenience. Before purchase or deployment, verify regional certification (EN/UKCA/UL as applicable), review placement and coverage requirements in your local fire code and plan for eventual replacement at battery end-of-life. With a suggested retail price of around 9.00, FireProtect 2+ SB is positioned as a professional-grade, low-maintenance smart detector for modern security and property management needs.
