Fixed gas detectors
Fixed gas detectors are sensors especially made to monitor concentrations of gases in ambient air. They are the first component of a fixed gas detection system. Mainly used with gas detection controllers but also with larger monitoring systems, fixed gas detectors ensure protection for 24 hours a day against hazards related to the presence of combustible, toxic or asphyxiating (oxygen deficiency) gases.
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4-20 mA analog gas detector/transmitter
Most of fixed gas detectors feature a linear 4-20 mA output (also called gas transmitter) and are ATEX approved. Some enhanced unit also feature digital display of measurements, alarm relays for actuators, MODBUS communication or even TCP/IP communication for the most enhanced fixed gas detector units...