GE NX-491 Wireless Smoke Detector

- Voltage: 3VDC

- Typical average standby current: 35A

- Typical test current: 2mA

- Typical alarm current: 70mA

- Battery type: Duracell® 3V lithium 123, Panasonic® lithium CR123A, Sanyo® lithium CR123A

- Low battery threshold: 2.70V causes low battery signal

- Sounder: 85dBa at 10' temporal pattern

- Low battery beep rate: 1 every 45 sec. 2 sec.

- Sensitivity: 2.2% 1.3%/ft.

- Operating temperature: 40-100°F (4.4-37.8°C)

- Operating humidity range: 0-95% non-condensing

- RFI Immunity: 20V/m minimum; 0-1000MHz

- Color: White

- Alarm dimensions: 5.6" x 2.4" (14.2cm x 6.1cm)
 
- Base dimensions: 5.4" x 0.46" (13.7cm x 1.17cm)

- Heat detector specifications: Rate-of-rise 15°F/min>105°F (8.3°C/min>°40.6C)

- Fixed: 135°F 5°F (57.2°C 2.8°C)

- RF frequency: 319.5 MHz

- Signal output types: Alarm, tamper, test, low battery, trouble, supervisory

- Listings: UL217, C-UL US, CSFM, FCC