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RKI InstrumentsModel GX-3R Pro -5-Gas Monitor with Wireless Communication

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The GX-3R Pro is a compact and lightweight gas detection device capable of simultaneously monitoring five gases. Weighing only 4.58 ounces, it provides comprehensive detection of confined space gases including LEL, O2, CO, and H2S, with an optional fifth sensor for hydrogen cyanide or nitrogen dioxide. It features interchangeable sensors, allowing for flexible configurations that can be modified in the field. Enhanced with Bluetooth for wireless communication, it connects to smart devices via an app to display real-time gas readings. The device includes a man-down alarm, choice of power supply, and a three-year warranty on materials and workmanship. A unique non-compliance indicator flashes in case of untested calibration or gas alarm events, providing a clear notification to safety supervisors. The lithium-ion battery ensures 25 hours of operation with a full recharge in just three hours. Certified for various safety standards, the GX-3R Pro is an efficient solution for industrial gas monitoring needs.
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The GX-3R Pro is the world’s smallest 5-gas monitor weighing only
4.58 ounces and fits in the palm of your hand (2.9” W x 2.6” H x 1.06” D).
It simultaneously monitors and displays 5 different gases. In addition to monitoring standard confined space gases, LEL, O2, CO, & H2S, the
GX-3R Pro has a 5th channel where you can add infrared or toxic gas sensors (Hydrogen Cyanide (HCN) and Nitrogen Dioxide (NO2) sensors are currently available for the GX-3R Pro). Two of the four sensor slots have interchangeable sensors providing flexible configurations, which can easily be changed in the field.

RKI is pleased to announce the availability of  These 2 sensors are in stock and are the latest in toxic gas options added to the line of GX-3R Pro sensors.

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 hours.

The GX-3R Pro utilizes Bluetooth communication to display direct gas readings from the instrument to a phone app, which is available free on either iOS or Android phones. Automatic notifications can be programmed to send text or email messages if there is an alarm event from the
GX-3R Pro.

Safety supervisors will appreciate the non-compliance indicator. The instrument flashes it’s 3 LED lights every 30 seconds in the following conditions; if the instrument has not been bump tested, or if calibration is due, or if there was a gas alarm event. The 3 LED lights will continue to flash once every 30 seconds until the non-compliance condition has been resolved. The 30 second interval is adjustable.

* 3 year warranty on material and workmanship including sensors (1 year for Ammonia sensor)

  • Smallest & lightest detector
  • Detect up to 5 gases simultaneously
    – 
    Confined Space: LEL, O2, H2S, CO
    – Toxics/IR Sensors: HCN, NH3, NO2, PH3, SO2, and CO2
    – H2 Compensated CO sensor available
  • Simple 2-button operation
  • Bluetooth communication with iOS & Android App
  • 3 user adjustable alarm levels
  • Panic Alarm & Man Down Alarm
  • Large full dot, auto-backlit display with auto-rotation
  • Field replaceable sensors & filters
  • Water and dust resistant design, IP66/68
  • 3 Year Warranty*
  • Personal monitoring
  • Confined spaces
  • Refineries/petrochemical
  • Utilities
  • Oil and Gas
  • Water/Wastewater
  • Fire Services
  • Construction