RKI is partnered with Riken Keiki Company, Ltd., the world leader in gas detection and sensor technologies. Celebrating over 65 years in the gas detection business, Riken has over 150,000 points of detection world wide in the semiconductor industry alone. RKI is the exclusive North American supplier of Riken products.
October 26, 2005
RKI purchases a new building for the cooperate headquarters located at 33248 Central Ave, Union City California
October 26, 2003
Riken introduces the GX-2003, five-sensor sample drawing personal monitor, measures % LEL and % volume Methane.
October 26, 2001
Riken introduces the GX-2001, worlds smallest 4 gas monitor.
October 26, 2000
RKI develops and begins shipping the Diffusion Eagle. 550,000 portable and fixed gas monitors sold to date by Riken Keiki.
October 26, 1999
Riken introduces the GD-K77D smart transmitter with greatly simplified calibration and maintenance.
October 26, 1998
RKI develops the Beacon 100 and 800 controllers. The Eclipse, NIC stand alone transmitter is also introduced with unique optical controls.
October 26, 1997
Riken offers the GasWatch, the first wrist worn multi- gas monitor.
October 26, 1995
RKI and Riken together develop and introduce the first 6 gas portable monitor, the EAGLE.
October 26, 1994
In a joint venture, RKI Instruments, Inc. becomes Riken Keiki’s North American Partner. Also unveiled is the GX-94 four gas portable with datalogging and auto
October 26, 1991
Riken introduces the 4 gas monitor GX-91B. Also, the OX-62B single gas O2 with extender cable, and the SC-90 super toxic portable.
October 26, 1982
Riken presents the GX-86, world’s first 4 gas, belt worn portable monitor.
October 26, 1980
Riken offers the RI-413, portable IR unit for Freons
October 26, 1978
Riken introduces RI-411, portable IR unit for CO2.
October 26, 1971
Riken introduces the world’s first 3 gas, belt worn monitor, the GX-82.
October 26, 1969
Models OX-80, CO-80, and HS-80 become the first pocket size monitors from Riken.
October 26, 1959
Riken introduces the world’s first 3 gas monitor with alarm, model 1641.
October 26, 1939
Riken begins OEM sales to the USA with portable and fixed gas monitors.
October 26, 1927
Riken builds the first combination combustible and oxygen portable gas monitor with alarm model GX-3.
October 26, 1925
Riken develops combustible gas monitors based on catalytic sensors.