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HC-SR04 Ultrasonic Distance Sensor


This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver, and a control circuit.

There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up and use for your next range-finding project!

This sensor has additional control circuitry that can prevent inconsistent "bouncy" data depending on the application.


  • Operation Voltage: 5V DC
  • Operation Current: 15mA
  • Operation Frequency: 40KHz
  • Measure Angle: ≤15°
  • Ranging Distance: 2cm - 400cm
  • Dimension: 45 x 20 x 12mm
  • Weight: 7.7g


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HC-SR04 Ultrasonic Distance Sensor

  • Product Code: 102042
  • Availability: In Stock
  • $2.90
  • 5+$2.50
  • 10+$2.30
  • 30+$2.00
  • 50+$1.70
  • 100+$1.50