offer LX-223 smoke detector

1.Photoelectric sensor 2. Power supply DC9V battery 3.Option current:20A 4.Alarm current10mA 5.Alarm sonority85db 6.Stakeout area 20 centiare 7.Working temperature10 45 8.Working humidity 95RH 9. LED indicator 10.Product size: 10.210.23.7cm