Pressure sensor SDE3-V1D-B-FQ4-2P-M8 For vacuum with M8 plug version. Authorisation=RCM Mark, CE mark (see declaration of conformity)=to EU directive for EMC, Materials note=(* Free of copper and PTFE, * Conforms to RoHS), Measured variable=2 x relative pressure, Measurement method=Piezoresistive pressure sensor with display