Riken Keiki Co., Ltd. GD-D58-AU1-102 Gas Detector

The GD-D58-AU1-102 Gas Detector is a fixed, suction-type gas detector head in RIKEN KEIKI’s GD-D58 series, delivering reliable, explosion-proof gas monitoring from hard-to-reach locations thanks to its built-in sampling pump that draws sample gas into the sensor. This design supports detection across multiple sensing methods (catalytic combustion, new ceramic catalytic, semiconductor—including hot‑wire, and thermal conductivity) and provides both gas and fault alarms, with a flameproof enclosure rated ATEX II2G Ex db h II B+H2 T4 Gb and IP67 ingress protection. The unit carries approvals including Japan Ex, ATEX, Taiwan Ex, and China Ex, with CE marking for EMC/ATEX/RoHS on DC configurations, and it is designed for easy maintenance through exchangeable components and a broad accessories ecosystem, including filters for dusty environments. Typical usage spans hazardous industrial environments such as furnaces and high-dust workplaces where combustible/toxic gases must be monitored continuously, and the GD-D58 family is noted for operation in humid atmospheres (up to 95% RH, no condensation) while maintaining reliable performance.