Product_description: ['- 2 Autofocus, High Resolution Integrated Camera/Optics Packages; - Multiple Back Box Models Day/Night, 540 TVL, 128X Wide Dynamic Range (WDR), Motion - Detection, and Electronic Image Stabilization (SD436 Series) Day/Night, 540 TVL, 128X Wide Dynamic Range (WDR), and Motion Detection (SD429 Series) Auto tracking Window Blanking Camera Title Overlay, 20 User-Definable Characters Horizontal and Zone Blanking On-Screen Compass and Tilt Display Password Protection Low Lux Noise Reduction Built-in Surge and Limited Lightning Protection'] (Page 1)