The Kidde P3010CU is a 10-year, sealed battery, smoke, and carbon monoxide alarm with a voice warning system that features photoelectric and electrochemical sensing technology with Smart Hush feature.
Kidde P3010CU Combination Smoke and Carbon Monoxide Alarm with Voice warning | eBay
Kidde P3010CU Smoke and Carbon Monoxide Combination Detector - White, 2 Pack for sale online | eBay