Hello
Is there a different between the DS-2CD2T87G2-L 4.0 mm and the DS-2CD2T87G2-L 2.8 mm
I can switch the Metadata in the 4.0 mm switch on To get extra light when someone is going in the Protected area ,
In the 2.8 mm model there is NO Metadata available , ( That means NO extra light when...