Introduction to the Ajax FireProtect 2 RB Heat & CO Detector
Ajax FireProtect 2 RB (Heat/CO)is a compact, wireless combined heat and carbon monoxide detector designed for homes and light‑commercial settings. It packs dual thermistor heat detection and a chemical CO sensor into a single device, uses the secure Ajax Jeweller radio protocol to communicate with an Ajax Hub, and runs on two replaceable CR123A batteries (preinstalled). With a built‑in ~85 dB siren, tamper detection and remote management via Ajax apps, the FireProtect 2 RB aims to provide fast, reliable warnings for two of the most dangerous household threats: fire and carbon monoxide.
Key features at a glance
- Combined detection:Heat and CO sensors in one unit for broader protection.
- Wireless connectivity:Secure two‑way Ajax Jeweller radio with up to ~1,676 m (open space) range depending on region.
- Replaceable batteries:2 × CR123A (3 V) — preinstalled and user replaceable; typical life up to ~7 years depending on settings.
- Built‑in alerting:Approximately 85 dB siren (measured at ~3 m), plus LED status indicators and tamper alerts.
- System interconnection:Alarms are relayed across the Ajax system (typically within the hub polling interval — around 20 seconds) so every connected device can alert occupants.
- CO sensor lifespan:Chemical CO sensor with an approximate service life of 10 years.
Detailed specifications and benefits
The FireProtect 2 RB combines practical hardware choices, a secure radio protocol and intuitive management to deliver a dependable detector that fits modern smart safety systems. Below are the technical highlights and the benefits they produce for end users.
- Model / variant:FireProtect 2 RB (Heat/CO) — replaceable batteries, Jeweller.
- Detection types:Heat (dual thermistors) and chemical CO sensor.
- CO alarm thresholds (typical):50 ppm ≤90 min; 100 ppm ≤40 min; 300 ppm ≤3 min. Confirm thresholds for your certified SKU/region before installation.
- CO sensor life:Approximately 10 years.
- Heat alarm:High temperature commonly in the ≈57–64 °C range; spike detection for rapid rise (typical trigger >28 °C within 1 minute). Verify exact values for your SKU.
- Radio protocol:Ajax Jeweller — two‑way encrypted communication; anti‑spoofing measures included.
- Radio bands:Region‑dependent (examples include 866–869 MHz, 902–928 MHz, 915.85–926.5 MHz, 921–922 MHz).
- Radio range (open space):Up to ~5,500 ft (~1,676 m) depending on region and environment.
- Siren volume:Approx. 85 dB (measured at ~3 m).
- Power supply:2 × CR123A (3 V) — replaceable, preinstalled.
- Battery life:Up to ≈7 years depending on configuration and usage.
- Operating conditions:Typical operating temperature range ≈0 °C to 50 °C (32 °F to 122 °F), humidity up to 80% non‑condensing.
- Protection class:IP20.
- Warranty:24 months.
- Certifications:EN and UL variants available; confirm certification for your specific SKU and region.
- Dual detection in one device:Combining heat and CO detection saves ceiling/wall space and simplifies installation compared with deploying separate sensors for each hazard.
- Fast, reliable alerts:The heat sensor responds to high temperatures and rapid rises, while the CO sensor catches dangerous levels of carbon monoxide that are otherwise invisible and odorless.
- Interconnected warnings:When linked to an Ajax Hub, an alarm from one FireProtect 2 RB can trigger alerts across the entire system, helping occupants rapidly become aware of a problem even if they are far from the initiating device.
- Remote management:The Ajax apps allow installers and homeowners to configure sensitivity, run tests, receive notifications and check battery status without needing to physically access the detector.
- Replaceable batteries:User‑replaceable CR123A batteries are convenient and widely available — and replaceable power can be preferable to sealed units when long‑term maintenance access is anticipated.
Use cases and scenarios where the FireProtect 2 RB excels
The FireProtect 2 RB is well suited to a variety of residential and light commercial installations. Consider these typical scenarios:
For families and renters, the FireProtect 2 RB covers both heat (fire) and CO risks with one device. The loud onboard siren and system interconnection mean a kitchen fire or a CO leak in a garage can trigger warnings across the home, improving chances of early detection and safe evacuation.
Landlords and property managers can benefit from wireless integration: devices can be centrally monitored through an Ajax Hub and managed remotely. Replaceable batteries and a long CO sensor life reduce maintenance visits over time.
Small offices, workshops and retail outlets that need both CO monitoring (for combustion appliances, boilers or attached garages) and early heat/fire detection can install FireProtect 2 RB units to meet practical safety needs without complicated wiring.
The FireProtect 2 RB is intended to be part of a broader Ajax ecosystem. It complements door/window sensors, motion detectors and video systems to create a more complete safety and security strategy, and provides a straightforward migration path for sites moving from standalone alarms to a managed smart system.
Comparisons with similar products on the market
When evaluating the FireProtect 2 RB, it helps to compare it against three common alternatives: standalone CO detectors, combined smoke/CO alarms and wired hardwired systems.
- Standalone CO detectors:Dedicated CO alarms can be more sensitive to CO and sometimes have different placement requirements, but they add extra devices and points of maintenance compared with a combined unit. FireProtect 2 RB offers a sensible compromise by integrating CO detection with robust heat sensing for fire scenarios.
- Smoke + CO combination alarms:Smoke sensors detect smoldering fires and small particles that heat detectors may miss. If protection against smouldering fires is a priority, a smoke/CO detector or a mixed installation (smoke detectors plus FireProtect 2 RB heat/CO) may be recommended. The FireProtect 2 RB focuses on heat detection, which is often preferred in kitchens, garages and near HVAC equipment to reduce nuisance alarms caused by cooking smoke.
- Wired hardwired systems:Hardwired systems with battery backup remain common in large installations and meet certain regulatory requirements. Wireless detectors such as the FireProtect 2 RB provide faster, easier installation, flexible placement and remote management — particularly useful in retrofit situations or multi‑tenanted buildings where rewiring is impractical.
Customer testimonials and user impressions
Actual user reviews for specific SKUs vary by retailer and region. Below are representative user impressions based on typical feedback from owners of Ajax combined detectors and similar products:
- "Installation was quick and the app made testing straightforward — we like getting instant notifications on our phones."
- "It’s reassuring to have CO monitoring combined with heat detection in one unit, especially given the long CO sensor life."
- "The alarm is loud and the interconnection across the system woke everyone in the house during a test — good peace of mind."
- "Battery replacement is easy and I appreciate the replaceable CR123A cells compared to sealed devices."
Note: For verified customer reviews refer to retailer listings, professional installer feedback or independent review sites for your country and SKU.
Conclusion: Why choose the Ajax FireProtect 2 RB
The Ajax FireProtect 2 RB Heat & CO detector is a balanced choice for homeowners, landlords and light‑commercial operators who want dependable, networked detection without the hassle of hardwiring. Its combination of heat and CO sensing covers two major risks, while the Ajax Jeweller radio and Hub integration deliver system‑wide alerts and remote management. Replaceable CR123A batteries, a long CO sensor life (≈10 years), and a 24‑month warranty make it practical to own and maintain.
While every site has unique requirements — and smoke detection may still be required in certain locations — the FireProtect 2 RB stands out for retrofit installs, multi‑unit properties and any setup where wireless, interconnected life‑safety devices are preferred. Verify the certified thresholds and regional SKU details before installation, and pair the FireProtect 2 RB with suitable smoke detectors and a properly configured Ajax Hub for a comprehensive, modern safety system.
Suggested retail price:$129.00 (example suggested_price). Warranty: 24 months. For exact dimensions, certifications and installation guidance, confirm the SKU and consult official Ajax documentation and local safety regulations.