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This feature-rich module uses dual micro-flow channels to effectively maximize the dynamic range of the sensor The highly sensitive sensing element is able to accurately resolve sub-pascal variations at low pressures, while the second element extends the measurement range up to 5000 pascals. An on-board microcontroller with accurate 24-bit ADC provides signal processing including stitching of the response of two sensing elements, linearization, and temperature compensation. The LHD ULTRA sensors are the ideal tool for applications that demand high precision, extended measurement range, and the convenience of a single device


  • Pressure ranges from 1250 to 5000 Pa(5 to 20 inH2O) with resolution of ~0.05 Pa (0.0002 inH2O) at low pressure
  • Pressure sensor based on thermal micro- flow measurement
  • High flow impedance
  • very low flow-through leakage
  • high immunity to dust 
  • no loss in sensitivity using long tubing
  • Outstanding long-term stability and precision with real-time offset compensation and linearization techniques
  • Outstanding total accuracy better than typ. 1.5% of measured value (typical) from 1% to 100% of full scale
  • On-board temperature sensor and barometer
  • Pin-configurable digital I²C or SPI output
  • Operating temp. range -40 to +85 °C
  • Low profile surface mount package with auxiliary flat cable connector
  • Pressure ports for direct manifold assemblies
  • Highly versatile to fit to application-specific mounting adaptors and manifolds
  • Minimized internal volume and manifold mount option allow for fast gas purge time



  • Respiratory Care: Ventilators, CPAP, Oxygen Conservers/Concentrators, Spirometers, Nebulizers
  • Minimally Invasive Surgery: Insufflators, Endoscopy


  • HVAC: VAV, Filter monitoring, Burner Control
  • Industrial: Fuel Cells, Gas Leak Detection, Fume hood, Instrumentation, Security systems


Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Package  Surface Mountable

  • Pressure Sensor Type  Digital Pressure and Altimeter Sensor Modules

  • Pressure Type  Differential

Electrical Characteristics

  • Supply Voltage Range (V) 3 – 3.6

Usage Conditions

  • Operating Temperature Range  -40 – 85 °C [ -40 – 185 °F ]


  • Output Interface  I²C or SPI

  • Proof Pressure Range  2 bar

  • Output Signal Type  24 bit I2C

  • Pressure Accuracy  ±1.5% of reading

  • Resolution  .7, 1.2, 2.5

Packaging Features

  • Sensor Port Configuration  Dual Vertical


  • Sensor Options  No Option, Short Tube

Reference Number

  • TE Internal Number CAT-BLPS0081

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