Review on IOT Based Fire Alarm Notification and Extinguisher System Saravanan - Kalaivanan, Saravanan; Sanketh, Madduri; S, Vasanth; Sai Sriveer, Paluvara Maruthi Siva; Vinod, Kuraku (Asian Journal For Convergence In Technology (AJCT) ISSN -2350-1146, 2022)