Safe-T-Alert 85 Series Carbon Monoxide Propane Gas Alarm - 12V - White [85-741-WT]

Caddis Outdoors gets 5 stars but MTI gets only 1 star. I ordered a 65-542 Carbon Monoxide. After having this on backorder for weeks, Caddis Outdoors informed me that MTI could no longer make this part. Sales at Caddis Outdoors did suggest another CO monitor, a 62-541 which would require a separate trim ring to fit the footprint. OK, so I switched the order -- that went on backorder as well! So Caddis suggested this 85-741 dual monitor with trim ring that they still had in stock. Of course with my mounting up high, the propane monitor does me no good. but for $3 more, it does fit the opening although sticks out more than the 65-542.