Hochiki SIJ-24 Ionization Smoke Detector

NOTE: This part is discontinued by the manufacturer. Replace with: Hochiki SOC-24V Photoelectric Smoke Detector. The Hochiki SIJ-24 Ionization Smoke Detector is a low profile plug-in ionization sensor suitable for a wide variety of uses; 2 or 4 wire base compatibility. COMPATIBLE BASES: NS-4 Series, NS-6 Series, HSC-4R or HSC-(X)R Style bases. Compatible for use with SLR-24V, SLV-24/-24V photoelectric detectors, the SLR-24H photoelectric detector with heat sensor and the DCD-135/190 heat detectors. NOTE: Backwards compatible with Hochiki SLK and SIH smoke detectors. Can also be used with Hochiki America HSB, HSC and YBA type bases for retrofit applications.