Model : SDG Explosion Proofed Pressure Transmitterr Features Explosion proof approval to Ex d IIB T4 3 1/2 digit LCD display Built-in amplifier circuit(VDC, mA) Optional 2-channel switching output (Relay output or NPN open collector output) Measuring range -100kPa...150MPa 0.2 / 0.5%FS accuracy 11~28VDC or 110~220VAC(50~60Hz) excitation voltage