HIKVISION DS-PDP18-EG2 Wired internal 18m PIR detectorodern design Delivers a small and sleek detection solution; providing a modern yet unobtrusive finish to complement any room. Detection range Up to 18m volumetric detection coverage, the Ellipse is the ideal solution for any small to large indoor rooms and spaces. Digital temperature compensation Digitally adjusts its sensitivity to maintain its specified range when the background temperature is close to body temperature. Automatic sensitivity self