Riken Keiki offers over a hundred different models of gas detection and environmental measurement products.
We continue to refine the technologies established through our history while investigating and improving the quality and technical capabilities of the products we provide. Riken Keiki instruments are designed and manufactured to respond to diverse industrial requirements and applications. Customers rely on them to detect and prevent disasters rapidly and precisely.
New product development involves the continual improvement and refinement of existing products, as well as active collaboration with our customers as a matter of course.

01 Toxic Gas Detectors
Special material gas accident prevention in the production of semiconductors and liquid crystal displays (LCD) Toxic gas leakage detection in areas such as oil refineries and petrochemical and chemical facilities.
02 Gas detectors for preventing accidents resulting from oxygen deficiency
Safety confirmation in areas such as sewage disposal plants, garbage processing plants, and manhole work.
Prevention of gas accidents during underground work such as tunnel work or sealed construction. Work safety in areas such as paper-making, pulp and paper mills, oil refineries, and steelworks.
03 Gas detectors for preventing gas explosions
Prevention of explosions resulting from gas cleaning in areas such as oil refineries, and petrochemical and chemical facilities. Prevention of explosions at LNG and LPG gas reception bases and tankers.
Prevention of explosions of drying furnaces in areas such as printing and tape factories.
04 Environmental monitoring instruments
Environmental management in semiconductor manufacturing plants and prevention of the generation of dioxins.
Automobile exhaust gas measurement
Formaldehyde measurement, fume level measurement
Environmental atmospheric monitors (SO2, NOX, CO, etc.)
05 Radiation monitor
To monitor the process and environmental contaminants in a number of applications including Medical & Life Sciences, Nuclear, ndustrial Research and Educational Sectors, Environmental and Waste management industries.
06 Other devices
Salinity measurement in freshly-mixed concrete, etc.
Surface analyses of electronics, etc.