DT-02 series gas alarm detectors are designed with stable sensors and the most advanced industrial microprocessor modules. It can be widely used in metallurgy, petroleum, fire-fighting, electric power, industrial and mining, municipal and refineries, chemical plants and other places prone to gas leakage, providing long-term uninterrupted monitoring to ensure personal safety and factory safety. The detector can transmit the detected gas concentration signal into a variety of industrial standard signal output, and can be used in conjunction with a variety of alarm host controllers produced by our company.