Normal maintenance of CCTV systems is key to ensuring their long life; this consists of cleaning lenses

https://thealmostdone.com/2020/07/24/why-businesses-are-now-installing-4k-cctv-systems/

Normal upkeep of CCTV systems is key to guaranteeing their long life; this consists of cleaning lenses, checking links, upgrading software program, and testing camera functionality regularly.