HIKVISION DS-PDSMK-4 4-Wired Smoke Detector

Advanced algorithms provide advanced detection discriminationSleek low-profile housing designStable photoelectric smoke sensing chamber. No adjustment or replacement requiredHigh immunity against unwanted alarmsSurface-mount device (SMD) circuit board designDual LEDs for 360° visibility4-wire models for DC 12 V operation4-wire models include a N/C or N/O alarm relay output