The Firex 480, 484, and 4480 are photoelectric smoke alarms. These units have an 85 decibel horn, test switch, and lighted power/alarm LED indicators. The 4480 and 484 AC smoke alarms can be interconnected with Firex ionization as well as photoelectric smoke alarms for the best smoke detection system.

4480 120V AC Direct Wire with Battery Back-up for single or multiple station use. The 4480 is interconnectable up to 18 Firex AC/DC units, 6 of which may be Firex heat alarms. This unit has two separate lighted LEDs — green "power-on" LED confirms constant AC power and the red LED displays alarm/battery status.

484 120V AC Direct Wire for single or multiple station use. The 484 is interconnectable up to 18 Firex AC smoke alarms. A green lighted LED "blinks" once per minute to confirm constant AC power and once per second when in alarm.

480 9V DC Battery Powered with a green lighted LED "blinks" once per minute to confirm DC power and once per second in alarm. Includes a 30 day low battery indicator and tamper resistant locking device.

These Firex smoke alarms should be placed in single-family households or in each individual living unit of multiple-family buildings. All smoke alarms should be replaced every 10 years.