What is a manometer? A manometer is a pressure gauge used to measure the pressure of compressed air, gas or vacuum in a system. This is important for monitoring pressure build-up, processes and possible leaks. The measurement is shown with a needle on a dial. There are different types of manometers, such as the standard manometer for general pressure measurements and the glycerin-filled manometer, which is suitable for environments with vibrations or shocks due to the damping effect of glycerin. We supply more than 250 standard manometers directly from stock. Looking for a private label solution? Contact us.