ENVIRONMENTAL CONTROL ANDTUNNELS GAS DETECTION CENTRALIZED SYSTEMS DURGAS CONTROL PANEL EURODETECTOR 4-20mA DETECTORS SONDELTOX - Toxic Gases and O2 (2-wire) DURTOX - Toxic Gases and O2 (3-wire) OPACIMETERS SENTRY OPACIMETER ANEMOMETERS VANE AND CONVERTER ULTRASONIC BIDIRECTIONAL CUP AND VANE LIGHT SENSORS LUMINANCE METER LUX METER ATMOSPHERIC SENSORS VISIBILITY AND PRESENT WEATHER SENSOR VISIBILITY METER RAIN GAUGE HUMIDITY AND TEMPERATURE SENSOR BAROMETER PYRANOMETER PAVEMENT ICE SENSOR WEATHER STATIONS COMPACT WEATHER STATIONS MODULARS DATALOGGER ATMOSPHERIC SENSORS ENVIRONMENTAL CONTROL AND TUNNELS