4 Pack Combination Smoke and Carbon Monoxide Detector Battery Operated, Portable Smoke and Co Alarm for Home Bedroom Travel White 4-Pack

Features

• Smoke and Co Detector You Can Hear the low Power alarm When the Power is Going to Run out, and Won’t Miss the Chance to Change the New Battery.
• Combo Smoke Detector/Carbon Monoxide Alarm Detects Battery-operated Unit installs Quickly and Easily Without an Electrician, loud 85dB Decibel alarm
• Photoelectric Sensor Detects Smoke While Minimizing false alarms, Electrochemical CO Sensor Alerts you to Carbon Monoxide Danger
• Combination of Carbon Monoxide Detector and Smoke alarm Simple style Designed for Kitchen and Travel
• In order to save power, when there is no abnormality, the screen is static and does not display, and the green light blinks every 60 seconds or so, which is the normal working condition