These are highly sensitive cameras that can detect changes in heat signatures, motions, and sounds and instantly get activated.
These cameras are mostly used for night vision. So even in complete darkness, you can see the perfect movement of any object or person with the help of these cameras.
Are usually attached to the ceilings of buses, trains, and tunnels.
These cameras can be accessed by a mobile application using a broadband internet connection.
These are mostly used for traffic surveillance at traffic signal posts