Product Description RKI GX-3R 4 Gas Confined Space Kit features the GX-3R gas monitor with LEL combustibles, O2, CO, and H2S sensors, Rp-3r Sample Pump, 10 Ft Sample Hose and Probe, Calibration Kit and accessories all in one carrying case. Applications: Personal monitoring, Confined spaces, Refineries/petrochemical, Utilities, Oil and Gas, Water/wastewater, Fire services, Construction Key Features: Smallest & lightest 4 gas monitor (2.2" W x 2.55" H x 1.02" D, 3.52 ounces) Simultaneous detection of 4 gases (LEL, O2, H2S & CO) Gas Monitor with 100-240 VAC charger 34AL cylinder CH4/O2/H2S/CO 0.25 LPM regulator RP-3R Sample Pump w/10 ft. Sample Hose & Probe Tubing Screwdriver Carrying case