Special Features:

As differentiated by scale type, scale name, scale range, scale accuracy, graduation unit, scale smallest increment, scale inscription/background color, dial size, scale marking, case material, case surface treatment, diameter, depth, protective crystal material, connection quantity, connection type, connection location, and connection size

Properties:

An instrument designed to measure and indicate pressure and vacuum, on one dial having a divided scale, a single indicating pointer which rotates either clockwise or counterclockwise according to whether pressure is applied or withdrawn.