Fire is a disaster that we can encounter many throughout the year. This research aims to protect as well as alleviate the worst possible fire disasters. The work system of this tool is made automatically using PLC as its controller. This tool uses two smoke detector sensors and a heat detector, the system is made automatically using 2 smoke and 1 heat each has an input on the PLC. The system is made into 2 parts Alarm 1 and 2. Alarm I is made if one of the 1 among 3 sensors provides input to the PLC and provides output in the form of buzzer on and yellow light on. Alarm 2 occurs if 2 or 3 sensors provide input into the PLC and provide an output bell on, flash light on and selenoid open to release Co2 into the room. The energy needed for this tool to operate in 24 hours is 0.3168 kWh or 316.8 Wh in standby position.
Keyword: fire extinguishers, smoke detector, Heat detector, PLC