Discover the efficiency of the Edwards Signaling SD-T18 SD Series SuperDuct 18" Air Sample Tube, perfect for duct smoke detectors in tight spaces. This compact device, less than 2" deep, is ideal for installations where space is limited. It features a PCB mounted photoelectric sensor with onboard intelligence, ensuring precise environmental compensation and differential sensing for stable performance. Suitable for high air velocity applications up to 4000 ft/min, it works seamlessly with Kidde Intelligent smoke detectors. Installation is straightforward with a standard or relay detector base that is prewired for easy plug-in and setup. Enhance your safety measures with this reliable and compatible solution. Shop now to ensure your environment is protected with cutting-edge technology!