1) . Familiar voice recorded instruction to exit household in time. 2) .Drill Function. 3) . Vocal smoke alarm horn and high quality speaker. 4) . Indicator lights. 5) . Low battery....

negoitable

1) , Microchip processor, containing flash memorizer with powerful function and reliable performance.
2) .Infrared photoelectric cells, built-in sunlight filters, effectively....

negoitable

1) .Wiring System: Detector and manual call point: Non-polarized 2 bus lines. Floor remote indicator: Non-polarized 4 bus lines. 2) .Address: Automatically addressed by controller.....

Features:
1) . Expandable modular design-3, 6, 9 or 12 stations.
2) . Controller face can be easily removed from housing.
3) . Three programs( A/ B/ C) each with four start times.
4) .....