GAS-MONITOR FOR PARKING HOUSES RICCIUS+SOHN has developed another controller for the control system DDC-Regel UNIT 9X compact: The phenominal gas monitor RU 9X.CO/GM. - Monitoring of up to 32 gas sensors for upper or lower limit - Evaluation of the actual value or of the average value - Monitoring of 4 adjustable limits and signal via signal output, choice between interval or permanent operation - Monitoring of 2 additional limits and control of 2 1-stage or one 2-stage ventilator - closing the outputs via external acknowledgement or acknowledgement at the front of the controller. - adjustable message texts to show on the display or sending to the building management system. Now certified by the german TÜV Application 1: GAS Monitor for all kinds of Gases Application 2: GAS Monitor for monitoring Oxygen Levels in tunnels