Ultrasonic Ranging Module HC-SR04

Seeed Studio

If you are searching an ultrasonic ranging module, the HC-SR04 is good choice: Its stable performance and high ranging accuracy make it a popular module in electronic market. It's cheaper than an IR range finder with similar range accurancy and distance.


  • Power supply: 5V DC
  • Quiescent current: <2mA
  • Effectual angle: <15°
  • Ranging distance: 2cm – 500 cm
  • Resolution: 1 cm
  • Ultrasonic Frequency: 40k Hz


Supply voltage 5V
Ultrasonic Frequency 40k Hz
Maximal Range 500 cm
Minimal Range 2 cm
Resolution 1 cm

Mechanic Dimensions


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