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Transducer sender (black bottom)

Velleman MA40A5S: 40kHz Ultrasonic Transducer Transmitter

Velleman MA40A5S

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The Velleman MA40A5S Ultrasonic Transducer Transmitter

An ultrasonic transducer transmitter converts electrical signals into ultrasound waves. The Velleman MA40A5S is an transmitter that is designed to emit or broadcast an ultrasonic signal to be received by the Velleman MA40A5R 40kHz Ultrasonic Transducer Receiver.



  • Description: ultrasonic transducer - transmitter
  • Max. input voltage: 20Vrms
  • Operating temperature: -4°F to +185°F
  • Range: 0.6 to 20ft
  • Nominal frequency: 40kHz
  • Sensitivity: -67dB min.
  • Sound pressure: 112dB min.
  • PCB mount
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 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product