RKI Gas Monitors: Reliable Gas Detection for Confined Space & Industrial Safety

When it comes to gas detection for confined space entry, leak detection, and industrial safety, reliability is non-negotiable. At Environmental Equipment & Supply, we provide a complete line of RKI Instruments gas monitors, including 4-gas, 5-gas, and 6-gas detectors, PIDs, and fixed gas detection systems, available for rental or purchase. Our team also provides factory-trained service, calibration, and sensor replacement to keep your instruments field-ready at all times.

This guide highlights the RKI monitors we rent and sell, their key features, and how to choose the right gas meter for your application.

Why RKI Gas Monitors?

RKI Instruments is a leader in toxic gas detection, LEL detection, and VOC monitoring. Their durable, accurate, and easy-to-operate devices are trusted in industries such as oil and gas, utilities, wastewater treatment, manufacturing, HVAC, and emergency response.

RKI monitors are known for:

  • Long-life sensors 
  • Rugged, weather-resistant designs 
  • Fast response times 
  • Reliable LEL, O₂, H₂S, CO, VOC, and CH₄ detection 
  • Easy calibration and bump testing 
  • Strong internal sample pumps 
  • Wide selection of portable and fixed detection solutions 

Portable RKI Gas Monitors Available for Rent

Environmental Equipment & Supply rents pumped (not passive) RKI gas monitors, each provided with a case, tubing, calibration regulator, and 115V charger.

GX-2009 – Personal 4-Gas Monitor

Gases: LEL, O₂, H₂S, CO
The GX-2009 is the smallest and lightest 4-gas meter on the market and ideal for personal and confined space monitoring. It features dual audible alarms, 360° LED visibility, vibration alerts, and datalogging.

GX-2012 – Versatile 4-Gas Confined Space Monitor

Gases: LEL, O₂, H₂S, CO
A highly durable pumped detector designed for confined space entry and leak tracking. Excellent for environmental, municipal, and industrial applications.

GX-Force – Lightweight 4-Gas Pumped Monitor

Gases: LEL, O₂, H₂S, CO
The newest compact pumped RKI monitor, offering two modes: Normal mode for confined spaces and Leak Check mode for ppm-level combustible detection. Up to 30 hours of runtime.

Gas Tracer – 5-Gas Detector with Methane Capabilities

Gases: LEL, O₂, CO, CH₄ (ppm and % volume), H₂S
The Gas Tracer stands out for methane detection, from 10 ppm leak tracking up to 100% volume. Ideal for gas line purging, barhole tests, and leak investigation.

GX-6000 PID – 6-Gas Monitor with VOC Detection

Gases: VOCs, LEL, O₂, H₂S, CO
A powerful VOC detector featuring a Photoionization Detector (PID) with a library of 600+ target gases, plus options for benzene-specific monitoring. Perfect for hazmat teams, remediation sites, and industrial hygiene.

RKI Gas Monitors Available for Purchase

In addition to rentals, Environmental Equipment & Supply sells the full RKI line, including:

GX-6000 (PID and non-PID versions)

Available with VOC, toxic, LEL, O₂, and CO sensors.

GX-3R

The world’s smallest 4-gas monitor, designed for breathing-zone monitoring and OSHA compliance.

 

Applications for RKI Gas Detection

RKI portable and fixed gas monitors support a wide range of applications:

  • Confined space entry 
  • Industrial hygiene 
  • Utility line maintenance 
  • Wastewater treatment facilities 
  • Refineries and petrochemical plants 
  • Hazmat response 
  • Manufacturing & fabrication 
  • Perimeter and leak monitoring 
  • VOC detection on remediation sites 
  • CH₄ monitoring on landfills 

Whether you need a simple 4-gas detector or an advanced VOC or methane monitor, Environmental Equipment & Supply can help you select the right gas monitor for your operation.

Rental Benefits with Environmental Equipment & Supply

When you rent from us, every gas monitor is:

  • Fully calibrated before shipment 
  • Delivered with tubing, charger, carry case, and gas regulator(s) for calibration 
  • Ready for immediate use 
  • Supported by expert technical assistance 
  • Backed by quick turnaround and nationwide shipping 

Service, Repairs, and Calibration

Our in-house service department can perform:

  • Multi-gas calibrations 
  • Sensor replacement 
  • Battery and pump repairs 
  • PID lamp cleaning and maintenance 
  • Annual service programs 
  • Turnaround certifications 

We are authorized to repair and service RKI portable and fixed systems, ensuring accurate, reliable gas detection performance.

Conclusion: Reliable Gas Monitoring Starts with the Right Equipment

Whether you’re monitoring a confined space, tracking VOCs, or conducting leak detection, RKI gas monitors offer dependable performance backed by advanced sensor technology. Environmental Equipment & Supply provides a complete solution from rentals and sales to calibration and repairs to keep your workers safe and your operations compliant.

Need help choosing the right gas monitor?

Contact Environmental Equipment & Supply today for expert support, rental availability, or a quote.