1. Althen Sensors
  2. Sensors
  3. Pressure sensors
  4. General purpose pressure sensors
  5. MPM430 Micro pressure transmitter
  • MPM430 sensor with display and wiring

MPM430 Micro pressure transmitter

Compact micro pressure sensor with ceramic diaphragm for low-pressure applications in water, mining and industrial processes.


Key features

  • High overload protection with ceramic diaphragm
  • Measurement range down to -25 mbar
  • Compact and corrosion-resistant stainless steel housing
  • Intrinsically safe version Ex ia IIC T6 Ga available
  • Excellent resistance to pressure shocks
  • Output: 4–20 mA with 2-wire configuration

Performance highlights MPM430 Micro pressure transmitter

The MPM430 is a robust and highly compact micro pressure transmitter designed for applications requiring reliable measurement of very low pressures. With a ceramic sensing diaphragm and stainless-steel construction, it delivers excellent long-term stability and corrosion resistance.

Usage conditions

The transmitter operates in ambient temperatures from -30°C to +80°C (plug version) or up to +80°C for PUR cable type. Thermal drift is ≤±0.15%FS/10°C in standard conditions. The MPM430 features IP65 housing protection and weighs less than 150 g.

Possible applications

  • Urban and industrial water supply systems
  • Hydro exploration and environmental monitoring
  • Low-pressure process control
  • Petrochemical and mining operations
  • Power generation facilities

Advantages of choosing this product

With its compact size and ceramic diaphragm, the MPM430 can handle pressure shocks and overloads several times its range, making it ideal for harsh environments. The non-cavity design also enhances measurement accuracy for low-pressure air or gas.

Other important features

  • Output: 4–20 mA (2-wire), powered by 12–28V DC
  • Wetted diaphragm material: 96% alumina ceramics
  • Electrical connections: Hirschmann plug or cable (PUR, PE, PVC)
  • Overpressure resistance up to 6 bar
  • Pressure types: gauge, absolute, negative pressure
  • Order options: connector type, cable material, Ex certification

Do you need this sensor for your next project?

Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.

Talk to an expert

Talk to our experts

Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.

Talk to an expert

Technical Specifications

Specification Value
Pressure Type gauge (with negative pressure measurement) absolute
Long-term Stability ±0.5%FS/year
Thermal Drift ≤±0.15%FS/10℃ (-20℃ ~ 80℃ ) ≤±0.2%FS/10℃(-30℃ ~ -20℃ )
Application Temperature -30℃ ~ 80℃ (plug connector type) -20℃ ~ 70℃ (cable type, cable material: PE, PVC) -20℃ ~ 80℃ (cable type, cable material: PUR) -20℃ ~ 60℃(intrinsic safety type)
Storage Temperature -40℃ ~ 120℃ -20℃ ~ 85℃ (cable type)
Housing Protection IP65
Weight ≤150g

Related products

Need something else?

mpm489 Pressure sensor suitable for general industry

MPM489 ATEX pressure transmitter

  • Intrinsically safe & Ex-proof versions
  • Pressure range up to 1000 bar
  • Stainless steel housing
Datasheet View product
MPM4760 Pressure sensor

MPM4760 Pressure Transmitter

  • Precise digital temperature compensation,wider compensation range
  • Optional data display(max.and min. measure value,percentage and output current display)
  • Special wider temperature LCD indicator(-30°C ~80°C)
  • 2-wire 4mA~20mA DC current loop output
Datasheet View product