AlertOlarm helps prevent theft where other more traditional siren only alarm may fall short. With its unique two way communication protocols AlertOlarm can either by used to dissuade theft via audible alarms at the point of entry or instantly alert the owner directly via the Alert device. Using PIR sensors, AlertOlarm senses movement or rapid heat differences (body heat) in any given environment. By pointing the PIR sensor at entry points to a building,vehicle, shed etc, then the moment any entry is made, it connects to the alert device to ring its alerts or raise the warning messages to the owner.