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Smoke Sensor Trainer (Fire Alarm)

To demonstrate the connection of fire-alarm along with cable, sensors and symbolic display (do’s and don’ts) and maintenance.

The experimental setup consists of the following specifications :

    1. IC regulated power supply : + 12 V @300 mA.
    2. Fire alarm circuit using Transistors, Relay, Buzzer, Switches.
    3. LDR used as sensor and its illuminated by LED fitted in a metal casing.

In presence of fire, smoke produce and it’s interrupted the light beam. The transistorized alarm system on and acknowledge and reset by a push switch.