RKI GX-2009 Calibration Gas — 4-Gas Mix & Bump Test Gas
Calibration gas and bump-test gas for the RKI GX-2009 portable gas detector. Trigas USA cylinders are a direct drop-in replacement for RKI Instruments calibration gas — same gas, same concentration, same cylinder and C-10 fitting — at 15–30% below RKI Instruments pricing. Every cylinder is NIST-traceable with an ISO 17025 Certificate of Analysis and ships in 48 hours from our Florida facility.
The RKI GX-2009 is typically calibrated with a 4-gas confined-space mix (CO, H2S, combustible/LEL, O2). Recommended Trigas USA cylinders below; pick the size that matches your regulator and cal frequency.
Recommended calibration gas for the RKI GX-2009
| Trigas P/N | Mixture | Cylinder | |
|---|---|---|---|
| 34L-409 | 4-Gas Calibration Mix 34L Aluminum - 50 ppm CO, 25 ppm H2S, 50% LEL CH4, 12% O2 | 34L Aluminum | View & buy → |
| 58L-409 | 4-Gas Calibration Mix 58L Aluminum - 50 ppm CO, 25 ppm H2S, 50% LEL CH4, 12% O2 | 58L Aluminum | View & buy → |
Single-gas & specialty options
Need a single component or a custom concentration? Carbon Monoxide (CO) · Hydrogen Sulfide (H2S) · Oxygen (O2) · Methane / LEL · All 4-gas quad mixes.
Full RKI Instruments cross-reference
Have a specific RKI Instruments part number? See every RKI Instruments → Trigas USA equivalent →
Request a quote or custom mix →
RKI GX-2009 and all OEM trademarks are property of their respective owners. Trigas USA is an independent manufacturer and is not affiliated with RKI Instruments. Compatibility based on published OEM gas specifications.