800TVL Mini Door Eye Hole Camera CCD Fisheye 1.7mm Wide Angle Lens Peephole Door Camera
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Could only wish this were less expensive and weather tight. The front lens unscrews and the CCD sensor is exposed without any safety window to protect it. Eventually it will need disassembly and cleaning because that end is exposed to the weather. The black knob-like cylinder seen at the back end of the camera is metal cap that stands proud of the inside of the door, wires run off it and will need to be attached to the door and door frame hinge side. An improvement would be to build this product with a one meter long length for the video and power wire leads. The wire could be hidden more easily on the door for esthetic needs.
Shipment was 3 weeks from order. Camera has only 800lines, it's see on box sticker. Works picture well