RI-257
Manufacturer:
RKI Instruments, Inc. 
Infrared Single Gas Monitor
THe model RI-257 sereies are designed to measure the presence of either Fluoro compound (FC) gas, Hydrofluroro compound (HFC or HCFC) gas representing VERTREL XP (HFC-134a) or IPA in the specified range through the built-in continuous operation pump. As they are based on NDIR (Non Dispersive Infrared) method, the sample gas specified can be measured without interference from other gases.Features
- Compact & lightweight
- Easy to install
- Negligible interference from other gases
OX-500
Manufacturer:
RKI Instruments, Inc. 
Indoor Oxygen Diffusion Gas Monitor
RKI’s Model OX-500 is an indoor monitor that detects Oxygen (O2) levels with a range of 0-25% (0.1 vol% digit). It’s a sleek low profile design which lends itself to laboratory or commercial applications. The OX-500 comes ready to operate with a simple wall mount bracket and 10 foot power cord. If Oxygen level drops, the user is notified by an audible alarm tone and multicolored LED display.EC-500
Manufacturer:
RKI Instruments, Inc. 
Indoor Carbon Monoxide Diffusion Gas Monitor
RKI’s Model EC-500 is an indoor monitor that detects Carbon Monoxide (CO) with a range of 0-150 ppm. It’s a sleek low profile design which lends itself to laboratory or commercial applications. The EC-500 comes ready to operate with a simple wall mount bracket and 10 foot power cord. If Carbon Monoxide is present, the user is notified by an audible alarm tone and multicolored LED display.
PS-2 Model
Manufacturer:
RKI Instruments, Inc. 
Single Point Stand Alone Monitor
A perfect low cost solution for hydrogen detection in battery rooms, or for LEL or PPM level detection of a variety of flammable or solvent vapors in general industry.GD-70D Series
Manufacturer:
RKI Instruments, Inc. 
Intelligent Gas Detector
The new Model GD-70D smart gas detection transmitter series sets a new standard for performance, flexibility, and versatility. The GD-70D sample-draw transmitter offers an array of sensor technologies unmatched in the industry, including unique offerings, such as our hydrogen-specific or LEL versions.GD-K8A
Manufacturer:
RKI Instruments, Inc. 
Diffusion Sensor/Transmitter
The GD-K8A is a diffusion style toxic gas detection transmitter ideally suited to meet your toxic gas detection needs. You can choose from a wide variety of toxic sensors to install in this model. The GD-K8A is an ideal solution for many toxic gas monitoring applications. The low profile design is only 1.5 inches thick and is easy to install. The hinged housing makes it easy to maintain. This transmitter can be installed with any RKI controller, or integrated to existing PLC or DCS system via 4-20mA output (24VDC two-wire, loop powered).Wastewater Gas Monitoring system
Manufacturer:
RKI Instruments, Inc. 
Explosion Proof Tri-Sensor Head
The RKI direct connect series gas sensors are highly reliable and very cost effective for the detection of common gas hazards. The direct connect series are available for LEL, Oxygen, H2S, and CO for a variety of RKI's controllers. All sensors are explosion-proof with flame arrestors, and approved for use in hazardous locations.35-3000RK
Manufacturer:
RKI Instruments, Inc. 
Sample Draw Sensor / Transmitter
The 35-3000RK (A) series is a compact sample draw detector assembly with a built-in pump that accepts a 24VDC input. This unit features a NEMA 4X enclosure making it dust, water and corrosion resistant. It also features a flowmeter with adjustable flow and a low flow alarm, which warns of any obstructions or restrictions in the flow system. Combustibles, oxygen, hydrogen sulfide and carbon monoxide versions are available with or without a 4-20 mA transmitter. The 35-3000RK (A) is also available with both LEL and oxygen sensors in one unit.H2 Specific
Manufacturer:
RKI Instruments, Inc. 
Hydrogen Specific Sensor/Transmitter
