Defender Wireless Night Vision Camera for the PhoenixM2 System Superior digital wireless functionality ensures that signals passing between the camera and handheld screen remain clear up to 450ft away- Please note: the cameras must be plugged into a power source This camera is equipped with night vision that lets you see up to 40ft away in total darkness The PHOENIXM2 system supports a total of 4 cameras to monitor multiple areas on your property Sensors within the camera detect movement and send a signal to the system to prompt recording, conserving your system SD memory space Built for indoor or outdoor use, the durable aluminum housing resists rusting, deterioration and can weather any season Not compatible with PX301-010, PX301-011, PX301-012, PX301-013