The pressure gauges with capsule elements are used to measure low positive/negative pressures in gaseous media. The capsule system consists of two half capsule elements which are soldered together. The element makes a defined stroke when subjected to pressure. A special measuring mechanism converts this movement into pointer-rotation. Depending on the required installation the instruments can be supplied with a panel clamp, triangular front ring or mounting flange. The housing is available in steel or stainless steel.