The GX-2003 Personal Sample Draw 5-in-1 Gas Monitor from RKI offers three operating modes: normal, bar hole and leak check. Featuring autocalibration or single calibration, the intrinsically safe unit monitors LEL, and % volume methane, O2 and CO (optional H2S). Internal sample drawing pump has up to 40’ range. The compact monitor comes with a two-year warranty. RKI Instruments Inc., Union City,