Carbon monoxide detection panel with 2 zones expandable to 3 by means of the MMD-509 module. Capacity of up to 32 detectors per zone. 2-wire installation without polarity, maximum distance of 2 km. It has 3 programmable level relays (extraction 1, extraction 2 and alarm). The relays can be configured to activate on a fault. It has two ways of activation: standard (by value of each detector) or by the real average of the entire area. It has a test mode for the maintenance of the installation. Optional: TRMD-500 or TRMD-501 card allows the control of a speed regulator connected to a motor, achieving energy efficiency and reducing noise and vibrations. ABS plastic housing, with the possibility of being embedded. Dimensions 439 x 268 x 112 mm. 230 Vac power supply. Possibility of connection of 2 BTD-1207 batteries (not included). UNE 23300: 1984 certificate.