Aspirating air sampling unit, with modular structure, designed to accommodate 1 or 2 detection modules. Coverage 1 zone with 1 or 2 independent aspirating channels. Aspirating network: ABS pipe Ø25mm, maximum length 300m per channel. Sensitivity class: A, B, C. Programmable aspiration speed. Each channel is equipped with a signaling interface consisting of 4 LED and 3 relay outputs: Prealarm, Alarm and Fault. The configuration of the aspirating unit is completed with the front synoptic label. 24V DC supply voltage. Maximum consumption: 1 detection module 220mA, 2 detection modules 250mA. Protection rating IP2x (IP52 with optional kit). Operating temperature -40°C...+60°C. ABS casing. Dimensions (L x H x D) 200 x 292 x 113mm. Approved EN 54-20. Certification: VdS G 202064.