Kidde KIR-OSD Intelligent Rotary Optical Photoelectric Smoke Detector

Advanced optical smoke detection with intelligent multi-criteria sensing technology. This photoelectric detector uses dual optical wavelengths and multiple detection angles to differentiate actual smoke from nuisance particles, significantly reducing false alarms from cooking and other common sources. Key capabilities include continuous self-diagnostics for long-term reliability, environmental compensation to minimize maintenance needs, and automatic device mapping for streamlined installation. Supports up to 250 intelligent addresses per loop and integrates seamlessly with existing wiring. Detects smoke obscuration from 0.5 to 4.36% (1.6 to 13.6 %/m) with two-level dirty detector warnings and two-level environmental compensation. On-board microprocessor analyzes multiple optical sensor readings against preprogrammed settings to make accurate alarm decisions. UL 268 7th edition listed. Designed for both life safety and property protection in commercial and institutional applications.