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Pressure & Force Measurement | Pressure Transducers | Pressure Transmitters Products


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Sier Low Pressure Transmitter (Range -1 to +5 Bar)

  • Reliable performance, easy application
  • Short protection and reverse polarity protection
  • Gauge, absolute and sealed gauge optional
  • Compact size


SPT21C is piezo-resistive pressure transmitter, uses high stable and reliable pressure sensor and special circuit board to produce transmitter. This product is used for measure and control of petroleum, chemi-industry, electric power, hydrology and flow pressure measure, etc.


  • Pressure range: -0.1…0~01…100MPa (-1…0~0.1…1000bar)
  • Over pressure: 1.5 times FS or 110MPa (min. value is valid)
  • Pressure type: Gauge/absolute/sealed gauge optional
  • Process connection: G1/4 male thread (or as per customer’s requirement)
  • Accuracy: ±0.5%FS
  • Long term stability: max. ±0.3%FS/year
  • Offset thermal drift: 0.1%FS/℃(≤100kPa);05%FS/℃(>100kPa)
  • Span thermal drift: 0.1%FS/℃(≤100kPa);05%FS/℃(>100kPa)
  • Compensated temp.: 0~50℃
  • Application temp.: -30~80℃
  • Storage temp.: -40~120℃
  • Power supply: 8~30VDC
  • Output signal: 4~20mADC(2 wires) 0/1~5VDC(3 wires)
  • Load resistance: ≤(U-12)/0.02Ω(2-wire), ≥10k(3-wire)
  • Housing protection: IP65
  • Electrical connection: DIN43650 plug/M12 connector/Cable
  • Construction and Outline Dimension
  • Construction material:
  • Housing: SS304
  • Pressure port: SS304
  • Diaphragm: SS316L
  • Sealing gasket: Viton
  • Plug housing: Plastic
  • Cable: Polyethylene Special Cable

Further Information

Data Sheets