A low pressure gauge is designed to measure very small pressure values with high sensitivity and accuracy. These gauges typically use diaphragm or capsule sensing elements to detect minute pressure changes that would be difficult to measure with standard bourdon tube designs.

Low pressure gauges are commonly used in applications such as air and gas monitoring, ventilation systems, clean rooms, filter monitoring, and laboratory equipment. Their precise measurement capability makes them ideal for ensuring correct operating conditions, detecting pressure drops, and maintaining system efficiency. They are available in differential, vacuum, and compound pressure configurations depending on the application requirement.