RKI Isobutylene/H2S/CO/CH4 50% LEL/O2 81-0143RK-04

Your safety team needs accurate gas detection. This RKI calibration mixture keeps your monitors precise and reliable. When your detection equipment drifts out of calibration, you risk missing dangerous gas levels on the job. This multi-gas blend—isobutylene, hydrogen sulfide, carbon monoxide, methane, and oxygen in nitrogen—matches real-world hazards your crew faces. It's the standard way to verify your GX-6100 or SDM-6100 stays accurate before each shift. The 34-liter aluminum cylinder gives you multiple calibration cycles. One tank, weeks of confidence that your equipment will catch what matters. Ships via UPS Ground only—HazMat rules apply. Calibration gas is final sale, so confirm your monitor model and gas mix before checkout. Note: This item ships via UPS Ground due to HazMat restrictions and isn't available for expedited shipping. Calibration gas is not returnable. Please check your selection carefully before ordering. Compatible with the following: RKI GX-6100 RKI SDM-6100 Part Number: 81-0143RK-04