4-channel aspirating smoke detector, equipped with 2 high-sensitivity smoke sensors and 4 dedicated airflow monitoring sensors. Designed for monitoring multi-channel aspirating pipe networks, it continuously checks correct airflow and detects increases in smoke particle concentration against the configured thresholds. It supports up to 700 m of total aspirating pipework and up to 240 sampling holes, distributed across the four channels according to the EN 54-20 sensitivity class. A second alarm level and 3 pre-alarm levels can be configured, with signals transmitted to the fire alarm control panel via relays. Design, configuration and maintenance are supported by the PipeFlow and MobileConfig applications. SSD1030 smoke sensors (2) not included. IP54 protection rating. Certified according to EN 54-20.