The GENSPEC GS4400/GS4500pressure transmitters are designed to meet the operational requirements of demanding pressure measurement applications providing fast and noise-free point to point communication in industrial applications in pressure ranges up to 0-1500 bar. The GS4400 provides a half-duplex digital RS-485 output signal and 0-5V analogue output, while the GS4500 provides a Modbus RTU output signal and 0-5V analogue output.