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HC-SR04 Ultrasonic Distance Sensor Module (Pack of 20)

HC-SR04 Ultrasonic Distance Sensor Module (Pack of 20)

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  • Using IO trigger for high level signal.( Not less that 10us),The Module sends eight 40 kHz automatically and detect whether there is a pulse signal back.
  • Operating voltage of this 20 Pieces Ultrasonic Module is 5VDC.
  • HC-SR04 consists of ultrasonic transmitter, receiver, and control circuit. Connection mode: VCC, trig (control), echo (receiving end), GND ground wire.
  • Perfect for all kind of projects that need distance measurements, e.g. avoiding obstacles. 

HC-SR04 Ultrasonic Distance Sensor Module (Pack of 20)

This is a Ultrasonic Distance Sensor Module of 20 Quantity. Ultrasonic Module HC-SR04 Distance Sensor can measure the distance to an object by using echo. It can measure the distance between the sensor and the object by the time from the sound wave of a specific frequency to the time when the sound wave is heard to bounce back.

The HC-SR04 Ultrasonic Distance Sensor Pack of 20 is perfect for all kind of projects that need distance measurements, e.g. avoiding obstacles. HC-SR04 provides 2cm-500cm non-contact measurement function, the ranging high accuracy can reach to 3mm.


  • Can be used with Arduino to make robotic projects based on distance, position & motion sensing.
  • Can be used in obstacle avoiding robot.
  • Can be used in IoT devices using any other Microcontroller board.

Take a look at our blog on interfacing ultrasonic sensor with Arduino. Whether you're new to this or already have some experience, this guide will make things clear for you to understand ultrasonic sensor interfacing with Arduino.

Package Includes:

  • 20 x Ultrasonic Distance Sensor - HC-SR04


Type of Sensor Ultrasonic Sensor
Voltage 5VDC
Detection distance 2cm-500cm 
Static current < 2mA
Level output High-5V
High precision up to 0.3cm

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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