Yuri Gedzberg

This security market channel dedicated to security systems - video surveillance, access control systems, intruder alarm, fire alarm, etc ..
Leading security market experts talk here about the technical updates about world trends, peculiarities of installation systems.
Here you will see the results of testing of various equipment.
In addition, on this channel I share my knowledge in the field of video surveillance, in the field of defect finding, in the field of radio engineering, in the field of advertising.
https://www.security-bridge.com