Ultrasonic distance sensor HC-SR04 2-200cm*

Ultrasonic sensor operating in the range from 2 cm to 200 cm. It is powered with voltage of 5 V. The output is a signal whose duration is proportional to the measured distance.

More details




Dodano produkt do koszyka

In stock, shipping 24 hours!

Price 7,70 zł

Product description: Ultrasonic distance sensor HC-SR04 2-200cm

Ultrasonic sensor working in the range of 2-200 cm. Powered with voltage of 5 V. The output is a signal whose duration is proportional to the measured distance.

Ultrasonic distance sensor HC-SR04 

The product is compatible with Arduino and Raspberry Pi


Directions of ultrasonic sensor HC-SR04

To begin the measurement, you must specify the output pulse voltage on the pin TRIG (high state 5V) for 10 s. The module measures distances using sound wave with a frequency of 40 kHz. To the microcontroller, a signal is sent, in which distance depends on the duration of high state and it can be calculated by the formula:

test distance = (high level time × velocity of sound (340m/s) / 2


  • test distance - the measured distance
  • high level time - duration of high state 
  • velocity of sound - velocity of sound waves' emission in air - 340 m/sec


In short, to get the result in centimeters, use the formula:

distance [cm] = ( high level time [us] * 34 ) / 1000 / 2



The measurement procedure is shown in the figure below.

HC-SR04 sensor specification

  • Supply voltage: 5 V
  • Average current consumption: 15 mA
  • Measuring range: from 2 cm to 200 cm
  • Output: frequency signal
  • Working frequency: 40 kHz
  • Dimensions: 45 x 20 x 15 mm


Details in the documentation.

Accessories for HC-SR04 sensor

Ultradźwiękowy czujnik odległości SR04

In our offer, you will find also mounting case for this sensor HC-SR04 (blue).


  • Voltage to 5.0 V
  • Voltage from 5.0 V
  • Interface Digital I / O
  • Sensor - distance to 200 cm
  • Sensor - distance from 2.0 cm


Posting the payment for the order on our account on a business day up to 13:00 means sending the goods on the same day!


The time of payment depends on the hours of ELIXIR session of the sender's bank and the recipient of the transfer (more information on this subject, for example on the website


The table presents available forms of delivery in Poland


Carrier and

Bank wire

by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

terms of service

14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.