12v Atwood 31011 Carbon Monoxide & LP Gas Propane Detector Alarm RV Trailer

WALL CUTOUT SIZE: 3-9/16" WIDTH X 3-7/16" LENGTH X 1" FOR RECESS MOUNT INSTALLATION. 

Manufacturer 2022

GOOD FOR 7 YEARS AFTER THE UNIT IS POWERED ON. 

7 YEARS DOES NOT START TILL THIS UNIT HAS BEEN POWERED ON FOR THE FIRST TIME.