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TE’s AD-101 non-invasive air bubble detector is easy to integrate and provides superior reliability, delivering confidence in overall system performance.

Bubble detection is critical in applications such as infusion pumps, hemodialysis and blood flow monitoring. TE Connectivity (TE) has developed a new compact AD-101 Air Bubble Detector (ABD) for non-invasive continuous monitoring of fluid for air bubble detection. Using ultrasonic technology the AD-101 sensor is capable of positively identifying the presence of a break in flow of any type of liquid. 

  1. AD-101 Air Bubble Detector Sensor Video (English)

Discover how the AD-101 air bubble detector sensor offers easy integration and provides exceptional reliability, delivering confidence in overall system performance.


  • Detects bubble size as small as 70% of tubing inner diameter
  • Sensor can be customized to fit tube or pipe
  • Tubing size from 3 mm to 10 mm
  • Non-invasive design eliminates sterility and fluid compatibility concerns
  • High noise immunity to EMI/RFI
  • Acoustic coupling agent not required
  • Integral electronics
  • Power-on and continuous self-diagnostic tests to confirm functionality


  • Infusion Pump
  • Apheresis / Auto-transfusion
  • Biotech / DNA Analysis
  • Blood Processing
  • Immunoassay
  • Chemical Analysis
  • Hemodialysis
  • IN-VIVO Detection of Gas


Frequently Asked Questions

Are air bubble detectors used in dialysis equipment applications?

Yes. Sensors such as the AD-101 series air bubble detector are used to detect bubbles in small diameter tubes in dialysis equipment.  Learn more about sensors in dialysis equipment.


Are air bubble detectors used in medical pump applications?

Yes. TE Connectivity (TE) manufactures force and air bubble detection sensors for medical infusion pump applications.


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

Product Type Features

  • Sensor Type  Air Bubble/Air-in-line Detectors

  • Type  Non-Invasive

Configuration Features

  • Cable  12 Inches

Electrical Characteristics

  • Output  Open Collector

  • Input  6 - 24 VDC


  • Pressure Range  Atmosphere


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