<![CDATA[EC21 Product Catalogs - optical detector]]> <![CDATA[GST Optical Beam Smoke Reflective Beam Detector with Relay Output Conventional Smoke Alarm Sensor]]> <![CDATA[Explosion-proof Point Type Smoke Fire Detector]]> <![CDATA[Smoke and Heat Detector FT-143 Relay Output 4-wire]]> <![CDATA[Household JT-W01 Gas Detector]]> <![CDATA[Conventional Smoke Detector]]>