A DP sensor, or differential pressure sensor, is a device used to measure the difference in pressure between two points. This type of sensor is used in a variety of applications, such as in HVAC systems, industrial process control, and medical diagnostics. The DP sensor is designed to measure the difference in pressure between two points, and can be used to measure the flow rate of a fluid, the pressure of a gas, or the level of a liquid. It works by measuring the difference in pressure between two points, and then converting that difference into an electrical signal. This signal can then be used to control a variety of systems. For example, in HVAC systems, the DP sensor can be used to measure the air pressure in a room, and then adjust the temperature accordingly. In industrial process control, the DP sensor can be used to measure the pressure of a gas or liquid, and then adjust the process accordingly. In medical diagnostics, the DP sensor can be used to measure the pressure of a patient’s blood, and then adjust the treatment accordingly.