Introduction to the Ajax FireProtect 2 AC (Heat & CO)
The Ajax FireProtect 2 AC (Heat/CO) — model FireProtect 2 AC (Heat/CO), SKU ITM004071 — is a mains-powered combined heat and carbon monoxide detector designed for indoor residential and light-commercial environments. It brings together rapid heat detection and chemical CO sensing in a single, integrated device that connects wirelessly to Ajax security hubs via the encrypted Jeweller protocol. With a built-in 85 dB siren, pre-installed WAGO connectors and SmartBracket mounting for fast installation, this detector is positioned as a modern, connected solution for homes, flats and small businesses that need reliable life-safety protection with system-wide alarms and remote notifications.
- Combined sensing:Class A1R heat sensing plus chemical CO detection (multi-level response).
- Mains power with backup:110–240 V AC mains supply with sealed internal lithium backup.
- Wireless integration:Jeweller protocol (encrypted, frequency-hopping) for secure, long-range communication with Ajax hubs.
- Easy installation:SmartBracket and WAGO 221 connectors for quick wiring and mounting.
- Longevity:CO sensor life up to 10 years; product lifecycle and 24-month warranty guidance.
Detailed specifications and benefits
Understanding a detector’s specifications helps evaluate how it will perform in real-world situations. Below are the key technical details of the FireProtect 2 AC and the practical benefits they provide.
- CO detection:Responds at 50 ppm within 90 minutes, 100 ppm within 40 minutes, and 300 ppm within 3 minutes. The sensor uses a chemical sensing element designed for household CO detection and has an expected service life of up to 10 years. Benefit: reliable early warning for dangerous CO accumulation and predictable replacement schedule.
- Heat detection:Class A1R thermistors with both high-temperature threshold (>64°C) and rapid-rise detection (>10°C/min). Benefit: strong protection against fires that produce little smoke (e.g., kitchen fires, slow smolders) and rapid response to fast temperature increases.
- Mains voltage:110–240 V AC, 50/60 Hz with sealed non-replaceable lithium backup. Benefit: continuous mains operation removes the risk of dead batteries; the sealed backup provides resilience during power outages.
- Power consumption:Up to 2 W. Benefit: energy-efficient operation while maintaining full functionality.
- Protocol:Jeweller (GFSK), encrypted and frequency-hopping. Benefit: secure communications and robust performance in environments with radio interference.
- Range:Radio range up to ~1.7 km open space (region dependent) and up to 20 mW ERP. Benefit: suitable for large properties and multi-room coverage when paired with an Ajax hub.
- Interconnect:Primary and fallback group alarm interconnection ensures alarm propagation across the system. Benefit: when one detector triggers, others in the group will sound even if the hub is offline.
- Siren:Built-in 85 dB (at 3 m) with distinct tones and LED patterns to differentiate CO vs heat alarms. Benefit: clear, local audible alarm that helps occupants recognize the type of danger quickly.
- Form factor:Approximately 122 × 122 × 54 mm, weighting about 305 g, available in white and black. Benefit: low-profile design that fits modern interiors.
- Mounting:SmartBracket with WAGO 221 connectors for tool-free wiring and fast installation. Benefit: reduces installation time for both DIYers and professional installers and ensures a secure electrical connection.
- Operating range:0°C to 50°C, humidity up to 80% non-condensing. Benefit: covers normal indoor climates for residential and many commercial spaces.
- Anti-tamper and authentication:Tamper switch and device authentication protect against tampering and spoofing. Benefit: helps keep the system reliable and trustworthy.
- Service life and warranty:CO sensor life up to 10 years; replace unit at end of service life. Product warranty for 24 months. Benefit: long sensor life reduces lifecycle costs; two-year warranty provides buyer confidence.
Use cases and scenarios where the product excels
The Ajax FireProtect 2 AC is particularly well-suited for environments that require reliable, interconnected protection for both heat and carbon monoxide. Typical scenarios include:
- Family homes and flats:Mains power ensures continuous protection for sleeping areas, kitchens, basements and boiler rooms where CO risk exists.
- Light-commercial premises:Small offices, cafes and workshops where staff safety and regulatory compliance are important but a full commercial fire alarm system may not be required.
- Integrated security systems:Properties already using Ajax hubs for intrusion and environment monitoring gain the benefit of connected life-safety alerts, remote notifications and unified control.
- Upgrades from battery-only detectors:Replacing older battery-only CO or heat detectors with a mains-powered, connected unit reduces maintenance interruptions from battery changes and improves reliability.
- Installers and contractors:The SmartBracket and WAGO connectors speed up installations on retrofit or new-build electrical circuits, saving time and reducing on-site complexity.
Comparisons with similar products on the market
When comparing the FireProtect 2 AC to alternatives, consider the main decision axes: sensing types, power source, connectivity and ecosystem integration.
- CO-only detectors (e.g., standalone CO alarms):Many CO-only devices are battery powered and may lack remote connectivity. FireProtect 2 AC provides CO sensing plus heat detection and wireless integration, offering broader protection and centralized notifications.
- Battery-powered combined detectors (including Ajax battery models):Battery models remove mains wiring requirements but need regular battery replacement and may have shorter lifetimes. The AC model provides mains reliability with sealed backup for outages.
- Smart detectors from consumer brands (e.g., Nest Protect):Consumer smart detectors emphasize home automation integration and user-facing apps. Ajax focuses on professional-grade wireless security networking (Jeweller protocol), long radio range and integration into security hubs used by installers and alarm receiving centers.
- Commercial fire alarms:Addressable commercial systems provide comprehensive features for large installations but are more complex and costly. FireProtect 2 AC fills the gap for smaller properties that need reliable, networked protection without full commercial system complexity.
Overall, the FireProtect 2 AC differentiates itself by combining mains reliability, long-lived CO sensing, rapid heat detection, professional wireless networking and installer-friendly mounting — a blend that appeals to property owners who value both convenience and performance.
Conclusion: why choose Ajax FireProtect 2 AC?
The Ajax FireProtect 2 AC (Heat/CO) is a compelling choice for homeowners, landlords and light-commercial operators who need dependable, connected life-safety protection. It pairs proven detection technologies (Class A1R heat sensing and chemical CO sensing with up to 10 years life) with mains reliability, a robust wireless security protocol and thoughtful installation features like SmartBracket and WAGO connectors. The built-in 85 dB siren and distinct alarm patterns help occupants quickly identify danger, while device authentication and tamper protection preserve system integrity. With a two-year warranty and clear lifecycle guidance, the FireProtect 2 AC balances performance, convenience and long-term value.
For anyone building or upgrading a connected security and safety system — or for those simply seeking a high-quality combined heat and CO detector that minimizes maintenance and maximizes integration — the Ajax FireProtect 2 AC is a strong, future-aware option. Confirm the specific regional certifications required in your market before purchase and follow local wiring regulations for mains installation. Suggested retail positioning makes this model an attractive mid-range investment in life-safety: mains reliability, professional-grade wireless integration and long-lived sensing in one compact device.
