Smarter Guard with Person/Vehicle Detection Reolink RLC-820A is equipped with on-device detection technology to discern people and vehicles from other objects. With its accurate detection, you can keep a sharper eye on the true threats and release your mind from the bombardment of unnecessary notifications. Flawless Video in 4K Ultra HD Home security jumps from 5MP to 4K Ultra HD – 1.6X clearer than Super HD and 4X clearer than 1080p HD. Details you see around home or store will be reproduced perfectly in live streaming and playback.