Which sensor's purpose is to sense the surrounding medium pressure?

• A. Temperature Sensor
• B. Pressure Sensor
• C. Rain Sensor
• D. Wind Sensor

Answer: (B)

Pressure is the force per unit area exerted by the surrounding fluid, and a pressure sensor is designed to respond to that force and convert it into a usable signal for monitoring or control. When the goal is to sense the surrounding medium pressure, the pressure sensor directly measures that parameter, whether it’s the pressure inside a irrigation line or the ambient pressure around equipment.

Temperature sensors measure heat, rain sensors detect precipitation, and wind sensors gauge air movement. So the sensor that matches the task of sensing the surrounding medium pressure is the pressure sensor.