The 6544 has an outdoor rating of IP-66. The IP rating stands for “Ingress Protection”, according to the Ingress Protection rating chart, this means the 6544 is totally protected against dust, and protected against temporary flooding of water, e.g. for use on ship decks, limited ingress permitted. So, the camera is weather rated to the IP standard as described above, in short it is designed for use indoors and outdoors in normal operating environments. The operating temperature for the 6544 is between -10 degrees Celsius and 45 degrees Celsius (14 – 113 degrees Fahrenheit).