Kidde Smoke & Carbon Monoxide Detector with Voice Alerts, Battery Powered, Combination Smoke & CO Alarm

2 units in 1: unit alerts you to smoke & carbon monoxide by sounding a loud, 85-decibel alarm & sounding voice alerts Ionization sensor technology

Kidde KN-COSM-BA Combination Carbon Monoxide & Smoke Talking Alarm

Kidde 10-Year Worry Free Smoke & Carbon Monoxide Detector, Lithium Battery Powered with Photoelectric Sensor 21029899 - The Home Depot

900-0220CA Battery Operated Talking Smoke & Carbon Monoxide Alarm