RKI Instruments H2S/CO/Isobutane 50% LEL/O2 81-0158RK-04 Limited Life Multi Gas Monitors All contact zones use contoured

All contact zones use contoured foam and are lined with breathable material

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

Anchor can be conveniently reused for either concrete or steel application

RKI Instruments H2S/CO/Isobutane 50% LEL/O2 81-0158RK-04 Limited Life Multi Gas Monitors All contact zones use contouredRKI 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