Update your RV LP gas alarm to a combination CO/LP gas alarm. Includes the great features as our 40 and 60 series LP gas alarms in one space-saving design. Dual alarm detects carbon monoxide, LP gas and CNG inside your RV. 12V operational range 7-16V. No false alarm sensor technology. UL/CSA listed. 1 year warranty. Flush Mount 6.5"W x 3.5"H x 1.4"D.