Kidde KI-DDOS Optica Duct Detector

The Kidde KI-DDOS Optica intelligent duct smoke detector provides addressable photoelectric smoke detection for HVAC ductwork on Kidde Commercial loop controllers, with 100 to 4,000 ft/min air velocity coverage, environmental compensation, and a shallow housing for tight spaces. It uses an optical sensing tube, supports remote test/reset or remote alarm LED options, and includes a Form C auxiliary relay for HVAC fan or equipment control. Key Specifications: Type: Intelligent addressable Optica duct smoke detector Core Function(s): Continuously samples duct air and initiates alarm and auxiliary control when smoke exceeds the programmed sensitivity Loop/Protocol: Kidde Commercial intelligent SLC Power: 15.2 to 19.95 VDC; 50 uA standby, 60 uA alarm Indicators/UI: Green LED for normal, red LED for alarm, amber LED for test; magnet-activated test switch Sensing: Photoelectric light-scattering Optica sensing; 1.5 to 4.5 percent/ft obscuration range Air Velocity Rating: 100 to 4,000 ft/min Alarm Relay: One unsupervised Form C auxiliary relay rated 3.0 A at 30 VDC, 3.0 A at 120 VAC, or 1.5 A at 240 VAC Wire Size: 14 to 22 AWG Compatible Accessories: SD-T8 - 8-inch sampling tube SD-T18 - 18-inch sampling tube SD-T24 - 24-inch sampling tube SD-T36 - 36-inch sampling tube SD-T42 - 42-inch sampling tube SD-T60 - 60-inch sampling tube SD-T78 - 78-inch sampling tube SD-T120 - 120-inch sampling tube GSA-LED - Remote alarm LED SD-TRM - Magnetic remote test/reset station with alarm LED SD-TRK - Keyed remote test/reset station with alarm LED SD-MAG - Test magnet kit SD-VTK - Air velocity test kit KI-DDOSIB - Replacement interface board KI-DDOS-ROT - Replacement optical sensor tube assembly DDOS-RET - Replacement exhaust tube System Compatibility: Compatible with Kidde Commercial loop controllers.