RKI Instruments H2S/CO/Isobutane 50% LEL/O2 81-0158RK-04 Limited Life Multi Gas Monitors 71557 (replaces 71556) - Replacement

71557 (replaces 71556) - Replacement Bladder for 750 ml Dispenser 71558

If your SST4-MICRO has been used in an environment with silicone or sulfur exposure and the LEL channel is showing drift

9in: Easily cuts clothing or other materials during emergency prep

PK Safety carries the full WatchGas SST line

RKI Instruments H2S/CO/Isobutane 50% LEL/O2 81-0158RK-04 Limited Life Multi Gas Monitors 71557 (replaces 71556) - ReplacementRKI Instruments H2S CO Isobutane 50% LEL O2 Calibration Gas Mixture Premium calibration gas blend designed for multi gas detector testing and verification. This 34 liter aluminum cylinder contains a precisely formulated mixture: H2S 25 ppm, CO 50 ppm, isobutane 50% LEL, and O2 12% in nitrogen. Ideal for maintaining accuracy and compliance in safety monitoring equipment. Perfect for technicians and safety professionals who need reliable, traceable