Fire alarm circuit diagram
Fire alarm beeping circuit diagram
Thermistor works as the heat sensor
Simple fire alarm circuit using thermistor and BC558 , BC548 , NE555. Makes an alarm when the fire brakes. Circuit diagram of the audio speaker 8 ohm 1w.
fire alarm circuit
This is a really interesting explanation of the electrical process in low cost Fire Alarms. Thanks for sharing.
Fire alarm installers
