temperature alarm circuit

Posted on Feb 6, 2014

transistors as a darlington pair. The circuit is also using a thermistor to detect or sense the heat. A 12K variable resistor is used to adjust the activation of the buzzer on the desired temperature. Working of the circuit is simple when the thermistor will sense temperature or heat its resistance will become lower due to which the transistors be

temperature alarm circuit
Click here to download the full size of the above Circuit.

come switch on and activate the buzzer.

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