RKI Instruments H2S/CO/Isobutane 50% LEL/O2 81-0158RK-04 Limited Life Multi Gas Monitors The fastest T90 in its

The fastest T90 in its class means the alarm fires before the atmosphere shifts around you

Highest cut resistance achieving ANSI A9 cut level

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

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

PK Safety carries the full WatchGas SST line

RKI Instruments H2S/CO/Isobutane 50% LEL/O2 81-0158RK-04 Limited Life Multi Gas Monitors The fastest T90 in itsRKI 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