![RKI Instruments GX-3R Four Gas Monitor RKI Instruments GX-3R Four Gas Monitor](https://cdn11.bigcommerce.com/s-64cbb/images/stencil/500x659/products/1003/2417/GX-3R__33263.1598963121.jpg?c=2)
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Complete Calibration Kit for RKI Instruments gas monitors (GX-2009 & GX-3R Series)
Shipping: Since the calibration gas is dated, it will ship directly from the factory and the other items will ship from our office in Kansas City; thus, you will receive 2 shipments from TG Technical Services.
This Kit is for a Standard 4 Gas Monitor with Oxygen, LEL, CO and H2S Sensors
Includes everything needed to calibrate the instruments: Carrying Case, Regulator, Adapters, Calibration Gas (only ONE Bottle)
Size: 34, 58 or 116 Liter Cylinder size (select when ordering)
Concentration: 12% O2, 25 ppm H2S, 50 ppm CO and 50% LEL Methane (2.5% Vol)
Shelf Life: 24 Months
These are the Special “PortaGreen” Refillable Cylinders. It even includes a return shipping label.
PortaGreen provides a hassle free cylinder return program designed to reduce HAZMAT costs and your carbon footprint.
Here is a link to learn more. https://www.lindedirect.com/specialty-gas-electronic-solutions/megacal-cylinders