sensor that exploits the direct
piezoelectric property of an
ordinary piezo element to detect fire.
The lead zirconate titanate crystals in
the piezo element have the property
to deform and generate an electric
potential when heated, thus converting
the piezo element into a heat sensor.
The circuit described here is very
sensitive. It gives a warning alarm if
the room temperature increases more
than 10°C. The entire circuit has two
sections—the sensor and the power
supply section.
The wireless intercom systems are available in different varieties and functions that provide various options to choose from as per the individual requirements. The variety of intercom systems can be opted as per the specific requirements for home, office, or even Window Intercom System as well.
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