Twin-dual PIR element outdoor motion detector with non-overlapping mirrored optics. Dual, Over-Lapping, Digital PIR. Adjustable optics and adjustable sensitivity. Digital temperature compensation. IP65 sealed enclosure. Day/night mode and high white light immunity. Quick and simple to install. Mounting Height: 1.0-1.4m, 1.2m nominal. Dimensions: 250mm x 86.5mm x 87mm.