As an Amazon Associate, we earn from qualifying purchases. Napco Security FW-4 4 Wire Photo Elect Smoke 12/24v | thebuilderssupply.com Napco Security Alarm . FW-4 Gallery Attributes Brand name, Manufacturer name, ManufacturerNapco Security Alarm Extra Product NameNapco Security FW-4 4 Wire Photo Elect Smoke 12/24v | thebuilderssupply.com moq, multiple, tierMinQty11 MPNFW-4 qtyInStock2 SKUNAP_FW4 tierPrice160.00 Distributor offers SellerSKUMOQIn stockMultiplePrices thebuilderssupply.comNAP_FW41211 @ $60.00