Pressure transmitter, Model: DMP 457 (Marine Approved Series), Function: Gauge Transmitter, Pressure Range: From -1 to +3 bar, Output Signal: 4 ... 20 mA (2-wire standard), Supply Voltage: 8 ... 32 VDC, Precision: Typically ≤ ±0.35 % FSO (Full Scale Output) for ranges greater than 0.4 bar, Process Connection: G1/2" male according to DIN 3852, Electrical Connection: ISO 4400 plug and socket (IP65/IP67)