Ajax FireProtect 2 SB is a wireless, ceiling‑mounted combined fire detector that integrates dual‑spectrum optical smoke sensing with fast temperature‑rise detection. The SB (sealed battery) version ships with non‑replaceable batteries designed to power the device for up to 10 years. It can operate standalone or be integrated into an Ajax security system for remote alerts and synchronous interconnection between detectors.

• Combined sensing: dual‑spectrum optical smoke sensor + A1R‑class thermistors for temperature / rapid temperature‑rise detection.
• Sealed battery: 2 × preinstalled non‑replaceable lithium batteries — up to 10 years operation (SB variant).
• False‑alarm reduction: HazeFlow 2 algorithm and dustproof smoke chamber minimise nuisance alarms from steam and cooking vapour.
• Built‑in siren: up to 85 dB for local audible alert.
• Wireless comms: Jeweller encrypted radio protocol for hub connectivity and system interconnection; long open‑space range.
• Optional CO: some FireProtect 2 SKUs include a chemical CO sensor (10‑year service life) — confirm SKU if CO capability is required.
• Installation: SmartBracket quick‑mount for easy ceiling installation and tamper detection.

Safety & compliance: Check the product manual and SKU for regional certification (CE / UKCA / UL variants). For safe installation and correct siting follow the Ajax installation manual and relevant UK/EU fire safety guidance — do not place detectors too close to cooking appliances or in very dusty/greasy environments. Regularly test the detector via the Ajax app or hub and replace the unit at end of life.