Ajax FireProtect 2 AC Heat/CO Black Wireless Fire & CO Detector

Ajax FireProtect 2 AC (Heat/CO) Black Wireless Fire Detector

The Ajax FireProtect 2 AC (Heat/CO) is a mains-powered wireless detector that combines rapid heat sensing with carbon monoxide detection in a single, sleek black unit. Designed to protect homes and small commercial spaces, it connects to an Ajax hub via the long-range Jeweller radio protocol, giving you real-time alerts, remote monitoring and automated safety scenarios straight from the Ajax smartphone app. It can also operate independently of a hub, making it a flexible option for standalone fire and CO protection.

Key Features

• Dual hazard detection: Combines two external A1R-class thermistors for fast heat detection with a dedicated carbon monoxide sensor.
• Mains-powered with battery backup: Runs on 110–240V AC power and automatically switches to an internal backup lithium cell if power is lost, so protection never stops.
• Long wireless range: Communicates with the Ajax hub over distances of up to 1,700 metres in open conditions using the encrypted Jeweller protocol.
• Interconnected alarm: When one Ajax fire detector triggers, the hub can activate sirens on all fire detectors in the system within seconds, and a fallback mode keeps devices communicating directly if hub connection is lost.
• Fast, tool-free installation: Mounts on the supplied SmartBracket panel with WAGO 221 terminals, and can be fully installed and powered up in about 90 seconds without disassembling the enclosure.
• Self-monitoring: Continuously reports its own status, including tamper attempts, low battery, and loss of connection with the hub.
• Built-in siren and LED indication: Clear audible and visual signals differentiate between fire alarms, CO alarms, and system faults.
• Cable-friendly design: Compatible with the optional CableTrunk accessory for neat, concealed wiring on ceilings.

Reliable Protection for Homes and Small Businesses

The FireProtect 2 AC (Heat/CO) is ideal for kitchens, garages, plant rooms, and any space near boilers, heaters or fuel-burning appliances where carbon monoxide risk is a concern but open-flame smoke detection isn't the priority. Because it is hardwired to mains power with a battery backup, it suits installations where a permanent, low-maintenance power source is preferred over battery-only detectors. When paired with an Ajax hub, it becomes part of a broader smart security and life-safety ecosystem, sending instant push notifications and enabling automated responses such as shutting off connected appliances.

What's in the Box

• Ajax FireProtect 2 AC (Heat/CO) Jeweller detector (Black)
• SmartBracket mounting panel
• WAGO 221 3-conductor terminals (2 pcs.)
• Installation kit and mounting screws
• Quick start guide

Frequently Asked Questions

Does this detector need an Ajax hub to work?
No. It can operate as a standalone mains-powered detector, but connecting it to an Ajax hub unlocks remote notifications, automated scenarios, and interconnected alarms with other Ajax devices.

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

Can it detect smoke as well?
This specific Heat/CO variant does not include a smoke sensor. If smoke detection is required, Ajax offers Heat/Smoke and Heat/Smoke/CO variants within the FireProtect 2 range.

Additional Resources

• More info