Anton L.Z. wrote With the external view to the street, situation is quite complicated. Noises inevitable. And apparently, most noise levels from everyday appliances, fridge, furnace etc. are above...

Model : Hardware Version : Firmware Version : ISP : I have installed 1 x NC450 and 2 x NC230, and set the motion and sound detection to 'Low'. 2 are internal views, 1 is an external view via window....