Purchase Qty. Reference FOB Price
1-499 Pieces US$6.50
500+ Pieces US$4.95
Product Description
Cheap Wired Network Optical Smoke alarm Detector for fire alarm system Main features: 1.SR-801 is 2-Wire Network Photoelectric smoke alarm 2.Power supply non-polar input 3.Infrared photoelectric sensor 4.MCU processing, eliminate false alarm 5.SMT manufacture technology, high ...