Pressure sensors and transducers are electronic devices used to measure pressure levels in gases or liquids and convert them into electrical signals proportional to the applied pressure. These sensors employ various technologies such as piezoresistive, capacitive, and piezoelectric principles to detect pressure changes accurately. Pressure sensors find applications in automotive systems, HVAC controls, medical devices, and industrial processes for tasks such as fluid level monitoring, altitude measurement, and flow control. They offer advantages such as high sensitivity, wide pressure range, and compatibility with different media, making them versatile tools for pressure measurement and control in diverse environments.