1. 1080p cameras are compatible with 1080p HD DVR recorders. 720p cameras are compatible with 720p & 1080p HD DVR recorders.
2. Stated IR illumination range is based on ideal conditions in typical outdoor night time ambient lighting and in total darkness. Actual range and image clarity depends on installation location, viewing area, and light reflection / absorption level of object.
3. Not intended for submersion in water. Installation in a sheltered location recommended.