Ajax FireProtect 2+ SB (Black) is a wireless combined smoke and temperature (heat) detector for standalone use or integration with Ajax hubs via the Jeweller radio protocol. It uses a dual‑spectrum optical smoke sensor and Class A1R thermistors to detect smouldering and flaming fires, with rapid‑rise and high‑temperature detection. The SB variant includes sealed non‑replaceable lithium batteries rated for up to 10 years and a built‑in piezo siren for local alarm.

• Dual‑spectrum optical smoke sensor to reduce false alarms from steam and vapour.
• Class A1R heat detection: high temperature and rapid temperature rise detection.
• Sealed (SB) lithium batteries — up to 10 years operation (non‑replaceable).
• Built‑in piezo siren (~85 dB) and anti‑tamper protection (lid & removal).
• Two‑way encrypted Jeweller communications and remote configuration via Ajax apps.
• Dust/insect‑protected patented smoke chamber and HazeFlow processing to minimise false alarms.

Use cases: Ideal for residential and commercial indoor fire detection where wireless integration, low maintenance and long battery life are required. Suitable for installers, monitoring centres and DIY security setups. For regulatory compliance (EN/UKCA/UL) check the certificate applicable to your region and SKU.

Safety & installation: Install in accordance with local fire and building regulations. Do not attempt to open the sealed battery version; follow Ajax installation guidance and the SmartBracket mounting instructions included.