2020 The GasWatch 3 is the world’s smallest and lightest single-gas and dual-gas monitor. Weighing just 1.6 ounces, its compact form affords great comfort and flexibility in how you choose to wear it.
2019 GX-3R, world’s smallest 4-gas monitor / GX-3R Pro smallest 5-gas monitor with bluetooth connectivity for phone app, RK Link
2018 MSHA GX-2009 available with NO2 Sensor
2017 Benzene Specific PID available for GX-6000
2015 Six gas sample draw with PID, IR, and super toxics, GX-6000 multi gas monitor
2016 Leak checker for 40+ Gases fumigants, toxics, freons, and combustibles, SP-220
2012 Five gas sample draw with 3 operating modes and auto-ranging display of % LEL and % volume, GX-2012 multi gas monitor
2010 Six gas portable monitor with PID capability, EAGLE 2
2009 The smallest confined space 4 gas monitor, GX-2009
2005 RKI Instruments purchases a new building for the corporate headquarters located at 33248 Central Ave, Union City California
2003 Five sensor sample drawing personal monitor that measures % LEL and % volume methane, GX-2003.
2001 The worlds smallest 4 gas monitor, GX-2001.
1999 Riken introduces the GD-K77D smart transmitter with greatly simplified calibration and maintenance.
2001 RKI developed the Beacon 100 and 800 controllers. The Eclipse, NIC stand alone transmitter is also introduced with unique optical controls.
1997 GasWatch, the first wrist worn multi-gas monitor for O2, CO, or H2S.
1995 RKI and Riken together develop and introduce the first 6 gas portable monitor, the EAGLE.
1994 </p.RKI Instruments, Inc. becomes Riken Keiki’s North American partner with the introduction of is the GX-94, four gas, portable gas monitor with datalogging and auto calibration.
1990 Riken introduces the first super toxic gas monitor, SC-90.
1986 Riken presents world’s first 4 gas, belt worn portable monitor, GX-86.
1984 Riken offers a portable IR monitor for Freon detection, RI-413.
1983 Riken introduces portable IR unit for CO2 monitoring, RI-411.
1982 Riken introduces the world’s 3 gas, belt worn gas monitor, GX-82.
1980 First pocket sized monitors from Riken, Models OX-80, CO-80, and HS-80.
1978 Riken introduces the world’s first 3 gas monitor (LEL, O2, CO) with alarm, Model 1641.
1938 iken builds the first combination combustible and oxygen portable gas monitor with alarm, GX-3.
1938 Riken develops first combustible gas monitors based on catalytic sensors, Interferometer.
