Home / Safety / Gas Detection Monitors / 81-GX01HSCO Calibration Kit for 72-0314RKC 81-GX01HSCO Calibration Kit for 72-0314RKC 58AL cal Methane/H2S/CO/O2, reg with gauge & knob, cal cap, case & tubing Share Select item(s) and enter your quantity. Item # pa_unit-of-measurement Price Qty 81-GX01HSCO each $462.00 You may also like 81-OX01-LV Calibration Kit for 72-0008RK-03 $302.50 72-0314RKC GX-2009 with 115 VAC Standard Charger $764.50 81-GX03VHSCO-LV Calibration Kit for 72-0290-27A $528.00 72--0290-27A GX-2012 Gas Monitor $1,314.00 72-0008RK-03 01 Single Gas Personal Monitor $396.00