Posted in | Pressure Sensors

OEM Piezoresistive Pressure Sensors Transducers MPM Series

Micro Sensor has been manufacturing piezo-resistive pressure sensors (isolation measuring cells) since the1990s. Now we offer a series of pressure sensors with digital or analog output signal (I²C, SPI, mV), in different diameter (19mm, 17mm, 15mm, 12.6mm), made of different material (SS316L, Titanium, Hastelloy and Tantalum).

MPM3801 Digital Pressure Sensor

MPM3801 measures both pressure and temperature value, and communicates by I²C or SPI interface protocol, using an integrated circuit for temperature compensation and non-linearity correction.

MPM3801 Digital Output Pressure Sensor

Image Credit: Micro Sensor Co., Ltd


  • Digital communication I²C or SPI
  • Dual output of pressure and temperature measurement
  • Low power consumption 5uA when standby, friendly to battery power supply
  • Isolation structure, stable performance, various material options


  • Range: 0...70mbar to 0...1000bar
  • Pressure Type: Gauge/Absolute/Sealed Gauge
  • Overpressure: 1.5FS or 1100bar (min. value is valid)
  • Accuracy: ±0.25%FS (typ.); ±0.5%FS (max.)
  • Output Digital Value: 1638 (zero)~14746 (span)
  • Output Digits: 14 digits (max. 16383)
  • Power Supply: 3.3±0.1V DC(default);5±0.1V DC
  • Power Consumption: 5uA (standby mode) @25℃
  • Long Term Stability: ±0.2%FS/year
  • Working Temperature: -20℃~80℃
  • Storage Temperature: -40℃~125℃
  • Compensation temperature:-10℃~50℃
  • Shock: 10g, 20Hz~2000Hz
  • Impact: 100g, 11ms

MPM3801A Digital Pressure Transmitter

MPM3801A has two types of structure with threaded connection, both use MPM3801 as sensing element. Type I is same to transmitter in structure, has both electrical and process connection. Type II has process connection, and flying leads as electrical connection.

MPM3801A Digital Pressure Transmitter

Image Credit: Micro Sensor Co., Ltd 


  • Digital communication I²C or SPI
  • Low power consumption 5uA when standby, friendly to battery power supply
  • Fully welded structure optional, without internal seal
  • Wide range of applications, including instrumentation, machinery manufacturing, gas volume corrector, leak detection, IoT devices


  • Range: 0...70mbar to 0...1000bar
  • Pressure Type: Gauge/Absolute/Sealed Gauge
  • Overpressure: 1.5 times or 110MPa(min)
  • Accuracy: ±0.25%FS, ±0.5%FS
  • Temperature accuracy: ±1.5℃ (Ambient Temperature)
  • Digital output: 1638(Zero)~14746(Span)
  • Output Bits: 14 bits (Max. digital counts 16383)
  • Wetted material: Stainless Steel 304/316L and Viton O-ring
  • Protection Class: IP65
  • Power Supply: 3.3V±0.1V DC(Default); 5V±0.1V DC
  • Power Consumption: 5uA(standby mode) @25℃
  • Long-term Stability: ±0.2%FS/year
  • Working Temperature: -20℃ ~80℃
  • Storage Temperature: -40℃ ~80℃
  • CompensationTemperature: -10℃ ~50℃
  • Shock: 10g, 20Hz~2000Hz
  • Impact: 100g, 11ms
  • Cable Length: ≤2m


MPM3801A I Used in Flowmeter.

Used in Gas Volume Corrector. Image Credit: Micro Sensor Co., Ltd

Wireless Pressure Transmitter.

Used in Wireless Pressure Transmitter. Image Credit: Micro Sensor Co., Ltd 

MPM280 Piezoresistive Pressure Sensor

MPM280 Pressure Sensor

Image Credit: Micro Sensor Co., Ltd 

MPM280 series are basic pressure sensor / measuring cell with isolation structure, optional in process connection, and flying leads as electrical connection. It has various material options including SS316L, Titanium, Hastelloy and Tantalum.


  • Constant current or constant voltages power supply
  • Φ19mm external dimater (optional in 17mm, 15mm, 12.6mm)
  • Vacuum measurement optional, to -1bar
  • Isolation structure, stable performance, various material options


  • Range: 0...70mbar to 0...1000bar
  • Pressure Type: Gauge/Absolute/Sealed Gauge
  • Linearity: ±0.15%FS, BFSL
  • Repeatability: ±0.05%FS
  • Hysteresis: ±0.05%FS
  • Power supply: ≤2.0mA DC, or ≤10V DC
  • Electrical connection: φ0.5mm Kovar pin or 100mm silicon rubber flexible wires
  • Input impedance: 3kΩ~8kΩ
  • Output impedance: 3.5kΩ~6kΩ
  • Response (10%~90%): <1ms
  • Insulation resistor: 100MΩ@100V DC
  • Overpressure: 2 times FS or 1100bar(min. value is valid)


  • Diaphragm: Stainless steel 316L
  • Housing: Stainless steel 316L
  • Pin: Kovar
  • O-ring: FKM
  • Net weight: ~23g(general type) 
                           ~125g(assembled type)


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