PHT-RBX25S540S0AFT0Z, Pressure type: gauge pressure, Pressure unit: bar, Measuring range pressure: 0 bar ... 0.25 bar, Process connection: Conical coupling (DIN 11851) DN 40 with union nut, Seal: without seal, Connection type: Field housing, Enclosure rating: IP67, Supply voltage: 11 V DC ... 30 V D