Summary: Polk County Fire Rescue responded to a propane alarm activation at an RV located on 6017 8th Road. Multiple units, including Engine 2 and Battalion 6, were dispatched. The alarm was reported to be sounding in the RV, but no propane odor was detected upon arrival. The incident was determined to be caused by a faulty CO meter, and the propane tanks were turned off as a precaution. The situation was brought under control with no injuries or hazardous conditions found.