Posted in | Piezoelectric Sensors

AR41 Airducer® Ultrasonic Air Transducer for Level, Flow and Distance Applications

The AR41 Airducer® Transducer from Airmar reliably delivers unparalleled ultrasonic sensing performance with level, flow and distance measurement applications. It incorporates standard internal shielding, and it can accommodate transceiver and signal processing electronics. The AR41 operates at 41 kHz and its sensing range is 30 cm to 20 m. The AR41 Airducer Transducer includes rugged sealed construction, and PVDF housing is available for more chemically aggressive environments.


  • Proximity
  • Level measurement
  • Avoiding obstacles
  • Flow measurement
  • Traffic control


  • Rugged sealed construction
  • Housing design accommodates transceiver and signal processing electronics
  • Normal internal shielding


  • Full assembly comes with standard cable lengths
  • Mounting cap comes with BSP, M32 or NPT threads
  • Thermistors of 10 KΩ are considered optional for temperature compensation
  • Comes with PVDF housing for use in chemically aggressive environments


  • Weight: 560 g (1.2 lb)
  • Peak operating frequency: 41 kHz
  • Minimum transmit sensitivity: 110 dB re, 1 µPa/V at 1 m at best transmit frequency
  • Minimum parallel resistance: 150 Ω
  • Minimum receive sensitivity: −160 dB re 1 V/µPa at best receive frequency
  • Minimum and maximum sensing range*: 30 cm to 20 m (1 to 66″)
  • Free capacitance: 5000 pF at 1 kHz
  • Typical sensing range: 35 cm to 15 m (14″ to 49″)
  • Beamwidth: 14° at −3 dB
  • Maximum driving voltage: 1800 Vpp at 2% duty cycle tone burst
  • Operating temperature: −40 to 90 °C (−40 to 194 °F)
  • Acoustic window: Glass-reinforced epoxy
  • Housing material: Glass-filled polyester

*Pulse-Echo Mode. Maximum and minimum ranges are best-case scenarios. The actual range might differ depending on drive circuitry and signal processing.

Acoustical Data

AR41 Airducer® Transducer for Multiple Application

Image Credit: AIRMAR Technology Corporation

Dimensional Drawings

AR41 Airducer® Transducer for Multiple Application

Image Credit: AIRMAR Technology Corporation

Other Equipment by this Supplier

Azthena logo powered by Azthena AI

Your AI Assistant finding answers from trusted AZoM content

Azthena logo with the word Azthena

Your AI Powered Scientific Assistant

Hi, I'm Azthena, you can trust me to find commercial scientific answers from

A few things you need to know before we start. Please read and accept to continue.

  • Use of “Azthena” is subject to the terms and conditions of use as set out by OpenAI.
  • Content provided on any AZoNetwork sites are subject to the site Terms & Conditions and Privacy Policy.
  • Large Language Models can make mistakes. Consider checking important information.

Great. Ask your question.

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.