Pirat69 comments
04-October-2020 Sunday
How China welcomes visitors during a pandemic
26-June-2020 Friday
CCTV camera viewing angles. What does it depend on and how to measure it
21-May-2020 Thursday
PoE - methods, standards, classes, nuances
19-May-2020 Tuesday
WiFi Video surveillance, disappointment in the 802.11 standard
