Description Manuals Videos Articles Clemco 22893 - Calibration Connector Assembly for CMS-2 Carbon Monoxide detector Manual Customers Also Viewed Clemco CMS Monitor Test Gas (10 ppm CO) #22865 $92.14 Clemco CMS-3 Calibration Connector Assembly #24614 $265.55 Clemco CMS-2 Sensor #22919 $139.77