Latest generation of universal aspiration smoke detectors 1 or 2 sampling lines with separate sensors and air flow monitoring EN54-20 classes A, B and C Vds certified calculation software; ASD PipeFlow enables efficient, asymmetrical pipe layout 4 alarm levels (3 pre-alarms and 2 alarms) Resolution <0.001%/m Insensitive to pollutants thanks to particle suppression Auto-learning function Low noise level, compliant with ISO 11690-1 Refined smoke detection thanks to HD sensor (high-dynamic technology) Low power consumption High performance suction (>400 Pa vacuum) Individually replaceable