Model: AK-218A
Photoelectric sensor
Ceiling mounted
Low power CMOS microprocessor
Working voltage:9VDC/12VDC
Working current:static current＜80ua, alarm current:100-150ma
Stable operating capability
Networking: wired networking（NO、NC）
Smoke sensitivity :0.2%-0.4%,UL217
Patent NO.: 200630155077.2
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