What is a Pressure Transmitter? Pressure transmitters , also known as pressure transducers, are used in industrial and process applications to measure the pressure of liquids, fluids, and gases in different working equipment. These transmitters are a vital component in process industries, especially the oil & gas industry which deals with a variety of fluids and gases. Types of Pressure Transmitters 1. Gauge Pressure Transmitter As the name suggests they measure the gauge pressure with respect to the atmospheric pressure. These types of transmitters are widely used in process industries as they involve the use of liquid and gases. The need to keep their pressure under check makes gauge pressure transmitter a vital component of the industry. 2. Absolute Transmitters These transmitters are used to measure pressure with respect to full vacuum. Basically, the media under measurement is placed in a sealed chamber to create a reference to absolute vacuum. These absolute pressu...