Portable 5-in-1 CO Detector with Smoke & Natural Gas, Plug-in Safety Alarm
【All-in-One 5-in-1 Detector】. 【Alert System】. Features audible alarms and flashing indicators when abnormal gas levels are detected. 【Battery Backup Support】.
4-Pack General Purpose Smoke Detectors
Has alarm test button. – Usage: Fire, Smoke. 4 x Smoke Alarm. – Easy to install and convenient to use.