The GR Compact range is built round a 38mm square body with flying leads. A hermetically sealed switch capsule with inert internal atmosphere provides a high current rating. This is the lowest cost series with a stainless steel housing. Large deadbands. The design, using a sealed piston, allows use on gases to 100 MPa. The GR range consists of:-

Type GR2: Standard model, with setpoints from 25 kPa to 10 MPa at static pressures up to 15,5 MPa.
Type GR4: High pressure model, with setpoints from 25 kPa to 70 MPa at static pressures up to 100 MPa.