RKI 65-2645RK-05-04 – M2A, Hydrogen Sulfide (H2S) 0-100 ppm Sensor / Transmitter with J-Box, Remote Detector and Calibration Adapter/Splash Guard, cCSAus Version

1000 ppm CO2 Calibration kit – 1,000 ppm CO2 gas, 0 ppm gas (Air). Item is HAZMAT for shipping purposes, available only in continental USA, and non-cancelable / non-returnable