RKI Instruments H2S/CO/CH4 50% LEL/O2 116AL 81-0154RK-116

The RKI Calibration Multi-Gas Mixture delivers precise gas blending in a durable aluminum 116-liter cylinder, engineered for confined space and industrial safety applications. This four-component blend—H2S 25 ppm, CO 50 ppm, CH4 50% LEL, and O2 12% in nitrogen—ensures accurate calibration of multi-gas detectors in real-world conditions. Ideal for technicians and safety professionals who demand reliable, traceable calibration standards. Ships via UPS Ground only due to hazardous material regulations. Non-returnable—verify your gas mixture requirements before purchase. 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-3R RKI SDM-3R RKI GX-3R Pro RKI SDM-Force RKI GX-6100 RKI SDM-6100 Part Number: 81-0154RK-116