Check the listing for details. Optical Smoke SD119- Detector 2-wire professional with mounting pad fire new. Color: Multicolor, Condition: New. Listed at 24.87 USD. Short description NEW SD119-2 optical smoke fire detector 2-wire connection, compatible with wired the most popular alarm panels (DSC, PARADOX, SATEL, PYRONIX, ELDES, SECOLINK, HONEYWELL, INIM ) . For pannel which desn't support 2 wire sensoirs, an dditional relay is required Model Sentek SD119-2 Specifications 2 Wire conventional smoke detector, 24V DC; Easy mounting and maintenance; Low profile base; Durable sensor head; You can find this item by unique part number: SD119-2 Shipping Delivery Terms Detector packed in a paper box shipped via registered package with tracking number provided by Lithuanian Post Free (Worldwide Economy, registered Post) 2-3 weeks Standart DHL (Europe only) - 1 week DHL Express (Worldwide expedited) 1 - 3 days If you have any questions refering compatibility to your alarm system - please contact us