First Alert Smoke Detectors, Carbon Monoxide Alarms

Ionization Sensor Smoke Alarm
From $10.94
BRK Brands / First Alert Ionization detectors consist of two plates separated by about a centimeter. The battery applies a voltage to the plates, charging one plate positive and the other plate negative. When smoke enters the ionization chamber, the smoke particles attach to the ions and neutralize them, so they do not reach the plate. The drop in current between the plates triggers the alarm.

BRK Carbon Monoxide Detectors
From $36.46
The BRK First Alert Carbon Monoxide Detectors are designed to warn you when there is toxic CO gas present in the air. CO gas is the leading cause of death by poisoning in the U.S. Everyone is at risk. Especially at risk are unborn babies, infants, senior citizens and people with coronary or respiratory problems.

Combination Smoke & Carbon Monoxide Alarms
From $66.79
These combination carbon monoxide and smoke detectors are chock full of features to give you the peace of mind you need to rest easy knowing your family is protected from two deadly conditions: carbon monoxide poisoning and house fires.