Amazon has the Kidde KN-COSM-B Combination Talking Carbon Monoxide and Smoke Alarm for $25 - 20% off at checkout = $20 with free shipping on $35+. Select Amazon.com as the seller under "More Buying Choices." Ships in 2 to 5 weeks. Features a talking alarm to alert you to the hazard detected and a hush button for non-emergency situations; uses 3x AAA batteries (not included).
Deal has expired