Abstract: A fire extinguishing device for extinguishing a fire from a stationary fire extinguisher. The fire extinguishing device includes a housing having a top wall. A peripheral wall is integrally coupled to and extending downwardly away from the top wall such that the housing has an open bottom side. A canister for disbursing a fire retardant material is securely coupled to an inner surface of the top wall such that a valve mechanically coupled to the canister is directed towards the open bottom side. The canister contains a fire retardant material in a respectively pressurized environment. Control circuitry for actuating the valve is securely coupled to an inner surface of the peripheral wall and is operationally coupled to the valve. A sensor for sensing relatively high heat is electronically coupled to the control circuitry. The sensor is securely attached to the peripheral wall. A plurality of fastening members removably fastens the bottom wall to a ceiling wall.