The Grainger Portable Gas Detector Calibration Kit is designed for calibrating and bump testing portable gas detectors. The kit includes calibration gas cylinders, regulators, hoses, adapters, and carrying case. Calibration gases offered include combustible gas, O2, CO, H2S, SO2, NO2, Cl2, NH3, and more. Cylinders contain 34L of gas mixture at standard pressure. Compatible with most brands including BW, Draeger, GMI, Industrial Scientific, MSA, RKI, and Scott Safety. Allows calibration of LEL, O2, toxic and other sensors. Provides an organized and efficient way to calibrate and bump test gas detectors per manufacturer recommendations.