Ajax FireProtect 2 AC Heat/Smoke White Mains-Powered Fire Detector

Ajax FireProtect 2 AC (Heat/Smoke) White Wireless Fire Detector

The Ajax FireProtect 2 AC (Heat/Smoke) is a mains-powered wireless fire detector built for reliable residential and light-commercial fire protection. Wired into a 110-240V AC supply with a built-in backup battery, it stays operational even during a power outage while communicating with an Ajax hub over the long-range Jeweller radio protocol. Its dual-spectrum optical sensor and dual external thermistors work together to detect real smoke and rapid temperature rises quickly, while intelligent filtering helps ignore steam and dust to reduce nuisance alarms.

Key Features

• Dual-spectrum smoke sensor: Uses blue and infrared LEDs to measure microparticle size and concentration, distinguishing genuine smoke from steam or vapour.
• Dual A1R-class thermistors: Mounted outside the enclosure for faster response to rapid temperature increases, including smouldering or synthetic-material fires.
• Mains-powered with battery backup: Operates from 110-240V~ 50/60Hz and automatically switches to an internal backup battery if power is lost.
• Long wireless range: Communicates with the Ajax hub via Jeweller with a line-of-sight range of up to 1,700 metres.
• Loud built-in siren: Piezoelectric buzzer delivers audible alerts up to 85dB so occupants can't miss an alarm.
• Self-cleaning smoke chamber: Sealed chamber design resists dust, dirt, and insects without needing regular manual cleaning.
• Interconnected alarms: When one detector triggers, all linked FireProtect 2 units in the system sound together within seconds for faster evacuation warning.
• Tamper protection: Dual tamper switches detect removal from the mounting bracket or enclosure opening.
• Easy installation: SmartBracket mounting panel with WAGO 221 connectors and in-app configuration simplify professional installs.

Reliable Fire Detection for Homes and Small Businesses

This detector suits bedrooms, living areas, offices, and similar indoor spaces where continuous mains power is available and dependable early fire warning is essential. It integrates into a wider Ajax security ecosystem, working alongside hubs, range extenders, and the Ajax app to deliver real-time push notifications and, where connected, alerts to a monitoring station.

What's in the Box

• Ajax FireProtect 2 AC (Heat/Smoke) detector, White
• SmartBracket mounting panel
• Installation and mounting kit
• Quick start guide

Frequently Asked Questions

Does this detector need a hub to work?
It can operate standalone with its local siren, but connecting it to an Ajax hub via Jeweller enables app notifications, interconnected alarms, and monitoring station integration.

What happens if mains power is cut?
The unit automatically switches to its internal backup battery, keeping detection and alerting functions active during an outage.

Is this suitable for outdoor use?
No, the FireProtect 2 AC is designed strictly for indoor installation.

Additional Resources

• More info