Addressable aspirating air sampling unit. Optical detection chamber with laser technology. Programmable detection sensitivity from 0.005%...1% obs/m (normal sensitivity). Sensitivity class: A, B, C. 1 zone coverage up to 1600m2. Control and dynamic compensation of detector chamber sensitivity, automatic air filter control. Detector operation can be monitored via the signal Led or with the TFT-4.3C repeater panel connected to the detector serial bus. Programmable functions: Prealarm and Alarm signaling thresholds, alarm signaling delay and aspirating air speed. Advanced management with adaptive detection logic, day/night mode defined by formulas that dynamically relate the functional states of the system devices. RSC® management: programming, remote management and control. Loop connection. Double line isolator. Power supply from an external 24V DC source. Air temperature -20°C... +60°C. Protection rating IP3x. ABS casing. Grey color. Dimensions (L x H x D) 260 x 252 x 110 mm. Approved EN 54-20:2006 - EN 54-17:2005. Certification: 1415-CPR-128-(C-3/2024).