Sensirion LPG10-1000 Digital Planar Liquid Flow Sensor

Sensirion LPG10-1000 Digital Planar Liquid Flow Sensor


Sensirion LPG10-1000 Digital Planar Liquid Flow Sensor provides high performance and speed in measuring liquid flow in a planar microfluidic glass substrate with down-mount fluidic ports for highly compact integration into any fluidic manifold system. Measuring 10mm x 10mm x 2.35mm3, the LPG10-1000 is ideal for high-volume applications with strict space limitations. Microfluidics chips and digital microsensor chips are combined to measure liquid flow inside a planar glass substrate. The digital microsensor chip provides full signal processing functionality for a fully calibrated, temperature compensated, linearized digital output.

The LPG10-1000 is a smart sensor solution offering flow rates from the low microliter per minute to 1ml/min. Glass, the wetted material, ensures optimum compatibility with biological and pharmaceutical processes. Due to the small thermal mass, response times below 30ms can be reached. The Sensirion LPG10-1000 Digital Planar Liquid Flow Sensor also offers real-time detection of failures such as clogging, air bubbles, or leaks.


  • Ultra-small 10mm x 10mm x 2.35mm size
  • Excellent repeatability
  • Completely calibrated, digital linearized output signal
  • Excellent media compatibility and chemical resistance
  • Media isolated sensing principle – no direct sensor contact with the fluid
  • Bio-compatible and consists of inert materials
  • Digital I2C interface


  • 1000µl minimum full-scale flow rate
  • 1500µl minimum sensor output limit
  • Response time
    • 40ms for flow detection
    • 120ms for power-up
  • Temperature ranges
    • +5°C to +50°C operating
    • -40°C to +60°C storage
  • 0 to 95% humidity, non-condensing
  • 3bar (43psi) recommended maximum operating pressure
  • 7bar (101psi) burst pressure
  • Digital sampling time
    • 74ms at 16-bit
    • 1ms at 9-bit
  • 3.3VDC to 3.6VDC operating voltage range
  • <6mA typical operating current
  • Borosilicate glass internal substrate channel material
  • Downmount fluidic connection
  • 0.1mbar pressure drop at the full-scale flow rate
  • ~11.7µl total internal volume
  • ~0.32g total mass
  • ~0.9mm x 0.9mm cross-section flow channel

Development Tools

Sensirion LPG10-1000 Evaluation Kit

Evaluation kit for testing the LPG10-1000 Digital Planar Liquid Flow Sensors.

Sensirion LPG10-1000 Evaluation Kit includes one LPG10-1000 sensor, preassembled in a fluidic manifold (PMMA), featuring ¼-28 flat bottom fluidic fittings. The fluidic seal between sensor and manifold is ensured using two O-Rings (FKM). The included connector cap secures the sensor to the manifold and features a 4-pin Molex connector. The included Molex adapter cable, USB cable, and software allow for easy evaluation using a PC.

Kit Contents

  • 1x LPG10-1000 sensor, preassembled in a fluidic manifold (PMMA), featuring ¼-28 flat bottom fluidic fittings
  • 2x O-Rings (FKM)
  • Connector cap with a 4-pin Molex connector
  • Molex adapter cable
  • USB-cable
  • Software

More information:

Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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