alertness
area
business
camera
cctv
closeup
control
crime
detection
digital
directional
equipment
event
guard
home
industry
instrument
ip
lens
mall
monitor
observation
office
online
optic
people
place
privacy
private
property
protection
public
recording
room
safety
secure
security
shopping
small
spy
surveillance
system
technology
television
translation
turn
video
watch
定額
Modern CCTV camera on a wall with a blurred multi-storey building on the background. Surveillance and monitoring of outdoor to protect against thievesの素材 [FY310192008440]
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