Deal over.

Update: Alive again at only $15.58!

2-Pack First Alert Battery Powered Carbon Monoxide Alarm – Link

Amazon has this marked down right now to only $16.51!

This normally sells for around $30 and is now its lowest ever.

• 2-Pack battery-operated carbon monoxide alarm with modern, compact design with no installation required
• Uses electrochemical carbon monoxide sensor-the most accurate technology available
• Simple to use silence/test button; low battery warning; end-of-life timer and loud 85-Decibel alarm
• Battery access in back of unit, 9 Volt battery included
• 5-Year limited warranty. Date on item is manufacturing date.