BRK fg250b, Battery Dual Ionization Sensor Smoke Alarm

BRK Smoke Alarm, Detectable Medium: Dual Ionization Sensor, Alarm: Audio, Flash Type Red LED Display, Battery, 40 – 100 deg F, 4-1/4 Inch Dia x 1.6 Inch H, Includes: 9 V Battery BRK fg250b, Battery Dual Ionization Sensor Smoke Alarm Detects smoke using a dual ionization sensor for enhanced safety Features an audio alarm to alert you in case of smoke detection Equipped with a red LED display for visual indication of alarm status Operates effectively in temperatures ranging from 40 to 100 degrees Fahrenheit Compact design with dimensions of 4 1/4 inches in diameter and 1 6 inches in height Includes a 9V battery for immediate use upon installation