The Ajax FireProtect 2 RB is a comprehensive safety device designed to protect your home from smoke, heat, and carbon monoxide. It utilizes a double-spectrum optical sensor with a patented chamber that helps ignore water vapor, reducing the chance of false alarms. For thermal threats, the Class A1R heat sensor triggers an alert if the temperature exceeds 64°C or rises by more than 10°C within a single minute, while the chemical CO sensor monitors air quality with a lifespan of 10 years. This detector connects to your security system via the Jeweller wireless protocol, offering a range of up to 1,700 meters in open spaces. It features a built-in 85 dB siren and a fallback interconnection mode that allows detectors to communicate directly with one another if the hub is unavailable. The device is powered by two CR123A batteries that can last up to 7 years, and its compact 124 x 124 x 45 mm frame is easily mounted using the included SmartBracket. Designed for indoor use in environments up to 80% humidity, the unit includes a tampering alarm and communication failure detection to ensure it remains active. You can easily monitor its status through the LED indicators, which use green, yellow, and red lights to signal power, malfunctions, or fire alarms. It is compatible with Hub Plus, Hub 2, Hub 2 Plus, and Hub Hybrid systems.