SJ Gauge pressure transmitters for industrial process monitoring

Pressure Sensors (Transducers/Transmitters)

An intelligent pressure transmitter is a highly precise pressure measurement device equipped with digital functionality. It converts measured pressure values into standard electrical signals (such as 4–20 mA) or digital signals, and supports various communication protocols including HART and Modbus.

This device is widely used in automation control systems, especially in industrial environments that require remote monitoring and high accuracy. If you would like to learn more about specific models or require product customization, please provide your detailed requirements, and we will offer tailored recommendations.

Pressure Sensors and Transmitters FAQ

Questions for choosing pressure transmitters, smart transmitters, flush diaphragm transmitters, and wireless pressure monitoring.

How do I choose a pressure transmitter?
Select by pressure range, accuracy, process media, output signal, electrical connection, process connection, temperature, and installation environment. General industrial models suit standard applications, while flush diaphragm, high-temperature, or aggressive-media versions are used for difficult media.
When is a flush diaphragm transmitter needed?
A flush diaphragm transmitter is recommended for viscous, particle-laden, hygienic, or media-prone-to-clogging applications. It reduces dead space and helps keep the sensing surface cleaner than a standard threaded port.
What output signal should I choose for a pressure transmitter?
4-20mA is common for industrial analog transmission, HART adds smart communication and configuration, RS485 or Modbus supports digital networks, and wireless transmitters are useful when cabling is difficult. Choose based on the control system and monitoring distance.
Can pressure transmitters be used in high temperature or corrosive media?
Yes, but the model and material must match the process. High-temperature applications may require remote seals or special transmitter designs, while corrosive media may require ceramic sensors, PVDF/PTFE interfaces, or diaphragm seal assemblies.
  • SJ Gauge VMEPT1020 pressure transmitter for oil and gas applications
    Model: VMEPT1020

    General Industrial Pressure Transmitter

    • Measuring ranges from 100 mbar to 600 bar
    • Accuracy: ±0.2% FSO (Min.), ±0.25% FSO (Typ.)
    • Calibrated and temperature compensated
  • SJ Gauge VMEPT1120-T transmitter for gauge pressure measurement
    Model: VMEPT1020-T

    Pressure Transmitter for High Temperature Application

    • Medium temperature: 0 to 200°C
    • Measuring ranges from 100mbar to 400bar
    • Accuracy: 0.5% FS(Typ.)
  • SJ Gauge EPT1120-W pressure transmitter with G one-half connection and DIN 43650 connector
    Model: VMEPT1120-W

    Flush Diaphragm Pressure Transmitter

    • Superb stainless steel welding technology and surface treatment process
    • Strong safeguard with high static pressure and high overload
    • The HART manual controller or the HART software can realize measurement information configuration remotely
  • SJ Gauge VMEPT1120-C high-accuracy pressure transmitter
    Model: VMEPT1120-C

    Flush Diaphragm Pressure Transmitter- Hygienical Application

    • Hygienical application
    • Stainless steel flush diaphragm
    • Measuring ranges from 100mbar to 25bar
  • SJ Gauge VMEPT1130 pressure transmitter for industrial automation
    Model: VMEPT1130

    Pressure Transmitter for Aggressive Media

    • Ceramic pressure sensor
    • PVDF/PTFE pressure interface
    • Measuring ranges from 200mbar to 50bar
  • Front display of an SJ Gauge industrial wireless pressure sensor
    Model: VMWL-P

    Wireless Pressure transmitter

    • Supports WSN and GPRS, suitable for petroleum, mining, and automation
    • Range 100 mbar–1000 bar, LCD display, high accuracy, low power
    • Long battery life with anti-vibration and moisture-proof design for reliable monitoring
  • SJ Gauge pressure switch used with pressure transmitter systems
    Model: MSPS131-TSR

    Pressure Switch, Electronic

    • Simple structure, easy to operate, high overload, high accuracy
    • OLED display function can achieve horizontal 180° rotation for easy observing
    • As an alternative, it has specifications corresponding to WIKA PSD30
  • SJ Gauge compact electronic differential pressure transmitter
    Model: MSSMP131-DLD

    Smart Pressure Transmitter, Compact, Differential Pressure

    • Pressure impact tests and time drift tests to ensure constant quality
    • Original calibration technology, realize parameters setting easily without any tools
    • Adopts patent pressure sensor technology, flexibly faces all kinds of challenges of working conditions
  • SJ Gauge smart pressure transmitter with stainless steel case
    Model: MSDMP305X-TLF

    Industrial Smart Pressure Transmitter, Stainless Steel Case

    • Superb stainless steel welding technology and surface treatment process
    • Strong safeguard with high static pressure and high overload
    • The HART manual controller or the HART software can realize measurement information configuration remotely
  • SJ Gauge hygienic diaphragm pressure transmitter with stainless steel case
    Model: MSSMP858-TSF-S

    Smart Diaphragm Pressure Transmitter, Hygienic, Stainless Steel Case

    • Isolated air cavity design to prevent condensation and avoid pollution to the media
    • Designed for food and pharmaceutical industry, suitable for CIP/SIP cleaning and sterilization
    • Double diaphragm overload protection structure can easily cope with high overload tests
  • SJ Gauge electronic transmitter for gauge pressure measurement
    Model: MSDMP305X-TST-S (Gauge)

    Industrial Smart Pressure Transmitter, Gauge Pressure

    • Strong transient voltage resistance to protect the terminal module
    • Dual diaphragm overload structure can easily cope with high overload tests
    • Accurate filling fluid technology eliminates the effects of temperature and static pressure
    • High-strength metal electrical protection housing meets the most rigorous environmental application
  • SJ Gauge electronic transmitter for absolute pressure measurement
    Model: MSDMP305X-TST-S(Absolute)

    Industrial Smart Pressure Transmitter, Absolute Pressure

    • High-performance monocrystalline silicon absolute pressure sensor
    • Excellent long-term stability and high measurement accuracy
    • Dual diaphragm overload protection for demanding conditions
  • SJ Gauge pressure transmitter with diaphragm seal and aluminum alloy terminal housing
    Model: MSSMP858-TST-S

    Smart Diaphragm Pressure Transmitter, Aluminum-alloy Terminal

    • 355° rotation display module, friendly button parameters operation function
    • Accurate filling fluid technology eliminates the effects of temperature and static pressure
    • High-strength metal electrical protection housing meets the most rigorous environmental application
  • SJ Gauge smart differential pressure transmitter with aluminum alloy terminal housing
    Model: MSDMP305X-DST

    Smart Differential Pressure Transmitter with Aluminum-alloy Terminal

    • Differential pressure transmitter originally patented fully-sealed, fully-isolated mono silicon pressure sensor
    • Double diaphragm overload protection structure can easily cope with high overload test
    • ASIC and SMT signal-transmitting module
    • Strong safeguard with high static pressure and high overload
  • SJ Gauge pressure transmitter with flanged process construction
    Model: MSSMP858-DST

    Smart Diaphragm Differential Pressure Transmitter, Flanged Construction

    • Originally patented fully-sealed, fully-isolated mono silicon pressure sensor element
    • Accurate filling fluid technology, eliminates the effects of temperature and static pressure
    • Double diaphragm overload protection structure can easily cope with high overload test
  • SJ Gauge pressure transmitter with extended welded diaphragm construction
    Model: MSSMP858-NST

    Smart Diaphragm Differential Pressure Transmitter with Welding Construction

    • High-stability pressure sensor
    • Originally patented fully sealed, fully isolated the pressure sensor element
    • Dual diaphragm overload structure can easily cope with high overload tests
    • Accurate filling fluid technology, eliminates the effects of temperature and static pressure