With its built-in technology, Reolink RLC-823A provides clear detection of people, vehicle and pets. This reduces false alarms and warns you of the real threats. The built-in spotlights and siren are motion-activated or remotely controlled via the Reolink App to deter uninvited intruders. The aluminium housing makes the Reolink RLC-823A camera waterproof and robust. It works perfectly both inside and outside your home, even in harsh weather conditions.