Gas Detection

RKI Instruments, Inc. is an innovative gas detection company located in Union City, California.
RKI began in 1994 with the belief that distributors and customers deserve a permanent reliable source for advanced gas detection instruments and sensors.

RKI is also known for unique product development. Through ingenuity and years of industry experience, we have developed our own line of gas detection instruments and accessories to complement the Riken product line. All of RKI developed products designed around Riken’s long lasting field proven sensors.

GX-3R Pro with Blutooth and Man Down
Worlds smallest and lightest 5 Gas monitor. Simple 2-button operation. Detection of LEL, O2, H2S & CO & other optional sensors H2 compensated CO sensor available. The GX-3R Pro comes equipped with Bluetooth wireless communication, man-down alarm, the choice of alkaline or rechargeable power supply, and a 3 year warranty. The Lithium-ion battery pack will operate for 25 hours and will fully charge in 3 hour.

World’s Smallest and Lightest 4 Gas Monitor. Simple 2-button operation with 25 hours of operation. Detection of LEL, O2, H2S & CO – H2 compensated CO sensor available. The GX-3R represents the latest evolution of gas detection technology utilizing a new generation of micro sensors. The LEL sensor has a unique design with two active filaments in one sensor to increase it’s resistance to silicone poisoning. If one filament gets poisoned the second filament takes over. The new O2 sensor is electrochemical with a 3 to 5 year life span. H2S and CO are now available in a combo micro sensor.

RP-3R Clip-on Sampling Draw Pump
The RP-3R are compact, battery operated, motorized sample drawing pumps which attach to the GX-3R or the GX-3R Pro to change them from diffusion operation to sample drawing operation. The model RP-3R pumps and the GX-3R or GX-3R Pro gas monitor make a complete solution for confined space entry. A hose and probe are available as optional accessories.

04 Series. Smallest Toxic Gas Monitor
The 04 Series toxic single gas monitor is designed to operate for many years with field replaceable sensors and filters. 4 versions to choose from HCN, NO2, PH3, and SO2. Operates 3,000 hours on alkaline batteries. Impact, dust, and water resistant (IP-67). Intrinsically safe, ATEX and C / US approvals and with a 3 year warranty.