Min. Order Reference FOB Price
100 Pieces US$5.32-5.80 / Piece
Product Description
Hot Sell 4 Wire Smoke Detector for Fire Alarm Main Features: 1.Power supply non-polar input 2.Infrared photoelectric sensor 3.MCU processing, eliminate false alarm 4.SMT manufacture technology, high stability 5.Dustproof, mothproof, anti-light interference design 6.Stainless steel ...