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For Recreational Vehicle Use ATTENTION: PLEASE READ, CSA 6.19-01 FOLLOW AND SAVE! Dear New COSTAR® 12RV-D Owner, Congratulations as you have taken steps to help insure the health and life safety of you and your family. We are proud to offer you our unique, patented CO Sensor technology that detects CO in a manner similar to the human body’s response. The COSTAR® 12RV-D is an ideal and low-cost way of warning you of both the acute and chronic effects of CO poisoning. Please read this owner’s manu