Sell smoke sensor alarm system

Description

Specifications:
(4 Wire Smoke Detector )

1. Model: Wireless Smoke Alarms SFL***8
2. Operating voltage: DC9V/*2VDC
3. Standby current: Less than*0uA
4. Alarm current: ****0mA
5. Sensitivity: Adapt to U***7 standard (3.2% weak smoke per feet the detector responds)
6. Operating temp.: **0 to **0 degrees
7. Alarm volume: *5dB/(*0 feet)
8. Alarm output: Sound & flash alarm, auto reset after alarm (wired); Alarm transmitting
9. F: **5M/**3M, transmitting distance: *0m (with block) (optional) (wireless)
*0. R size: R=**5mm, H=*8mm
*1. Working humidity: Less than *5%RH
*2. Alarm mode: Sound & flash alarm
*3. Alarm volume: More than *5dB/m`
*4. Detecting area: *0 square meter
*5. Sensitivity: Class I
*6. Dimension: **7mm dia. **5mm deep
*7. Sensor: Light labyrinth