Home / Safety / Gas Detection Monitors / 72–0290-27A GX-2012 Gas Monitor 72–0290-27A GX-2012 Gas Monitor GX-2012 Gas Monitor , 5 sensors, LEL/% volume CH4/O2/H2S/CO base Share Select item(s) and enter your quantity. Item # pa_unit-of-measurement Price Qty 72-0290-27A each $1,314.00 You may also like 81-GX01HSCO Calibration Kit for 72-0314RKC $462.00 72-0008RK-03 01 Single Gas Personal Monitor $396.00 72-0314RKC GX-2009 with 115 VAC Standard Charger $764.50 81-OX01-LV Calibration Kit for 72-0008RK-03 $302.50 81-GX03VHSCO-LV Calibration Kit for 72-0290-27A $528.00