GS4400 Pressure Transmitter with RS-485 Interface


■ Pressure ranges to 1,500 bar (21,755 psi)
■ Excellent corrosion resistance
■ Silicon-on-sapphire sensor technology



Description | Data Sheet | Related Products

General Purpose Pressure Transmitter with RS-485 Interface:

  • High strength titanium pressure port
  • High resistance to overpressure and pressure transients
  • High accuracy option
  • RS-485 communication up to 1200 m
  • Resistant to interference from noise


Providing a half-duplex digital RS-485 output signal and 0-5V analog output, the GS4400 provides high stability and repeatability. It can be configured to suit a multitude of applications and with proprietary RS-485 protocol, each sensor can be allocated a unique device address and connected in series to other sensors and devices on the same communications link.

The unique Silicon-on-Sapphire sensor technology provides outstanding performance and gives excellent stability over a wide temperature range. The advanced sensor design consists of a piezoresistive silicon strain gauge circuit, which is epitaxially grown onto the surface of a sapphire diaphragm to form a single crystalline structure. The sapphire sensor element is then molecularly bonded to a titanium alloy sub-diaphragm. This enables the sensor to endure higher over- pressures and provides superb corrosion resistance. The sensor exhibits virtually no hysteresis and excellent long-term stability. With outstanding insulation properties, the sapphire substrate allows the sensor to operate over a very wide temperature range without loss of performance.

Standard digital accuracy is 0.15%, with an exceptional overpressure limit. All models are supplied with integral 1/4″BSP male with a range of other process connection options. The titanium alloy wetted parts offer unbeatable corrosion resistance and the M12 electrical connection is rated IP67 for high levels of environmental protection.


The GS4400 include the continuous monitoring of hydraulic systems with oil, gas, water and other process liquids, industrial, medical and aerospace industries. Also ideal for the measurement and control of pressure in refrigeration, pneumatic, compressor, HVAC and engine monitoring systems.


GS4400 Pressure Transducer Download Data Sheet

Additional information

Additional information

Model Number


Pressure Ranges

0-0.5 bar, 0-1 bar (0-15 psi), 0-1 bar Vac (30 in Hg), 0-2.5 bar (0-30 psi), 0-10 bar (0-150psi), 0-16 bar (0-200 psi), 0-25 bar (0-300 psi), 0-6 bar (0-100 psi), 0-100 bar (0-1,500 psi), 0-250 bar (0-3,000 psi), 0-400 bar (0-5,800 psi), 0-600 bar (0-8,700 psi), 0-1,000 bar (0-14,500 psi), 0-1,500 bar (0-20,000 psi)

Calibration in

bar, psi.