[c00lio]

Had great experience with Mobotix cameras in internal non-internet-connected networks. There are also models that can write on SD-Cards and such. But I didn't really shop around and compare, don't know how that supplier was picked.

[Wistar]

At our business, we have four Mobotix M16 dual sensor (day/night) cameras, and all here who deal with them rave about them.