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.
Customer feedback and reviews
While specific customer reviews vary by market and retailer, common themes reported by installers, system integrators and end users include:
- Positive feedback:Installers praise the SmartBracket and WAGO connectors for saving time on site and reducing wiring errors. Users appreciate the clear alarm tones and the peace of mind that comes from mains-powered continuous protection.
- Integration benefits:Resellers and integrators note that the Jeweller protocol and group alarm interconnection make the detector a strong option for properties already using Ajax ecosystems, as alarms propagate reliably and remote notifications are immediate.
- Longevity:The 10-year CO sensor life is highlighted as a strong advantage over many competing CO sensors that may have shorter service lives.
- Areas to watch:As with any mains-connected device, customers are advised to ensure local electrical regulations are followed and that a qualified electrician performs or verifies the mains connection where required.
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.
