Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button & Smoke Detector & Carbon Monoxide Detector Combo with 10-Year Battery, 2 Pack

• Product 1: Electrochemical sensor technology detects CO gas Product 1: Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included) Product 1: Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop Product 1: Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide Product 2: 2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device Product 2: Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide Product 2: An 85-decibel alarm sounds & a red LED indicates the smoke detector is sensing smoke or fire Product 2: Lithium battery operated: eliminates the need for battery replacement & provides reliable detection, even during power outages