Smart Alarm Alert System (SAAS) is a complete wireless call system based on the latest radio frequency technology - LoRa. It has a long range providing communication up to 10 km. The power consumption is low, providing up to 5 years of battery life. SAAS is easy to install, intuitive to use and flexible. User can import different floor maps and set differenct alert sounds for alarms without re-programming. SAAS follows the design guidelines incorporated in safety standards like CE (Europe), HKCA-1078, UL, FCC (US) and UKCA. It is fully supervised to provide a reliable solution.