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

Ajax FireProtect 2 AC (Heat/CO) White Wireless Fire & Carbon Monoxide Detector

The Ajax FireProtect 2 AC (Heat/CO) is a mains-powered wireless detector that keeps watch for both dangerous heat spikes and rising carbon monoxide levels in a single compact, white enclosure. Built for Ajax's Jeweller radio ecosystem, it pairs with an Ajax hub for real-time smartphone alerts, or can run as a completely standalone life-safety device with its own built-in siren and LED indicators. A backup battery keeps it operating through power outages, making it a dependable addition to homes, offices, plant rooms, and any space where mains power is available near the ceiling.

Key Features

• Dual detection technology: two external Class A1R thermistors sense fast temperature rises, while a built-in chemical sensor monitors carbon monoxide concentration.
• Mains-powered with battery backup: runs on 110-240V AC and automatically switches to its internal backup battery during a blackout.
• Loud built-in siren: an 85 dB piezo buzzer sounds distinct tones for heat alarms versus CO alarms, so the danger type is clear at a glance.
• Long-range wireless link: communicates with an Ajax hub via the encrypted Jeweller protocol over distances of up to 1,700 metres in open conditions.
• Works with or without a hub: functions autonomously using only its siren and LEDs, or connects to the Ajax app for remote monitoring and instant push notifications.
• Simple, tool-friendly installation: a redesigned mounting panel with pre-installed WAGO 221 connectors allows quick wiring without disassembling the enclosure.
• Interconnected alarm response: when one fire detector triggers, it alerts the hub and other on-site detectors within seconds for a coordinated evacuation warning.
• 10-year designed lifespan: engineered for long-term reliability with minimal maintenance once installed.
• Discreet white finish: a low-profile ceiling-mounted design that blends into most interior colour schemes.

Where It Fits

This detector suits any room with an accessible mains supply near the ceiling, such as living rooms, bedrooms, hallways, offices, or utility rooms with boilers or fireplaces where carbon monoxide risk is higher. It is particularly useful in properties already running an Ajax security system, since fire and CO alarms then appear alongside intrusion and other events in the same app, but it can equally be installed as a stand-alone mains-powered smoke-free heat and CO alarm.

What's in the Box

• FireProtect 2 AC (Heat/CO) detector unit, white
• Mounting panel with pre-installed WAGO 221 terminal connectors
• Mounting screws and fixings
• Quick start guide

Frequently Asked Questions

Does it need an Ajax hub to work?
No. It can operate independently using its own siren and LED indication, though a hub is required for app notifications and remote monitoring.

What happens if the power goes out?
The detector automatically switches to its internal backup battery, so protection continues uninterrupted during a mains outage.

How does it tell a heat alarm apart from a CO alarm?
The siren uses different audible tones and LED patterns for a heat alarm versus a carbon monoxide alarm, making the type of danger immediately clear.

Additional Resources

• More info