Introducing the latest evolution in gas detection!

Introducing the latest evolution in gas detection!

The GX-3R is the world’s smallest
4-gas monitor!

Weighing only 3.52 ounces, it clips comfortably within a worker’s breathing zone. Both the GX-3R and the GX-3R Pro utilize a new generation of micro sensors:

  • The new LEL sensor has two active filaments to increase its resistance to silicone poisoning
  • The new O2 sensor has a 3 to 5 year life span
  • H2S and CO are now monitored by one combination micro-sensor
  • Available with a hydrogen compensated CO sensor (as LEL/O2/CO)
  • Non-compliance indicator
  • The sensors are field replaceable: Easy to change in less than 60 seconds

The GX-3R Pro is the world’s smallest 5-gas monitor!

Weighing only 4.58 ounces, it fits in the palm of your hand! In addition to the four confined space gases (CO, H2S, LEL, O2) the GX-3R Pro has a 5th channel for toxic and infrared sensors that can monitor:

  • ppm of CO2
  • % volume of CO2
  • SO2
  • CO sensor (with hydrogen compensation)
  • HCN, NO2, NH3, or CL2      [COMING SOON, 2020]

Additionally, the GX-3R Pro comes equipped with:

  •  Two interchangeable sensor slots providing flexible configurations
  • Non-compliance indicator
  • Man-down alarm
  • Panic alarm

Stay Connected!

The GX-3R Pro has Bluetooth Connectivity

  • Connect to the RK Link app to view direct instrument readings
  • Adjust alarms and instrument settings
  • Configure it to send alarm notifications and location to your desired contacts in case of emergency
  • Available on iOS and Android

3 Year Warranty

RKI backs up our quality with a 3-year warranty on the instrument and the sensors for both GX-3R and the GX-3R Pro. We believe gas monitors should be in service for years and not decommissioned after 24 months. If cost of ownership is important to you, then the GX-3R and GX-3R Pro are excellent solutions.

GX-3R 4 Gas Monitor

GX-3R Pro 5 Gas Monitor