The RCX delivers both high-resolution color (day) and infrared (night) still images, as well as a video/audio option to capture game activity in your area (audio on RCX-2 only). The advanced system uses CMOS sensor technology similar to that found in higher-end camcorders to produce tremendously sharp, crisp images.
RCX-1: 8 megapixel images | RCX-2: 10 megapixel images
For exceptionally clear images at night, the PIR LEDs combines with XD image processing and advanced auto-exposure calculations.
RCX-1: 36 PIR LEDs | RCX-2: 48 PIR LEDs
A special day/night sensor allows the camera to quickly adjust exposure as light levels change and to activate the infrared (IR) system at night.