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Ultrasonic Sensor SRF04


Out of stock

(1 customer review)

Ultrasonic sensors are based on measuring the properties of sound waves with frequency above the human audible range.This SRF04 sensor provides 2cm – 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. They typically operate by generating a high-frequency pulse of sound, and then receiving and evaluating the properties of the echo pulse.The modules includes ultrasonic transmitter, receiver and control circuit.

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Out of stock

SKU: SEN-0022 Category: Tags: , ,



  • Operating Voltage:5V
  • Operating Frequency: 40Hz
  • Max Range: 4m
  • Min Range: 2cm
  • Measuring Angle: 15 degree
  • Trigger Input Signal: 10uS  TTL pulse
  • Echo Output Signal: TTL level signal, proportional to distance


  • Datasheet

1 review for Ultrasonic Sensor SRF04

  1. Rakesh (verified owner)

    The Product description seems more like a review from someone who really bought it. I bought the and was trying to understand why it isn’t working. Read product description now. Didn’t expect negative things mentioned in product description. Such as current consumption, high range and all. My sensor isn’t receiving ECHO signal, now i am guessing it could be due to module need high power while my power adapter is 5V, 1A for (RPI 3 Model B)

    Would appreciate if other owners share their experience.

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