---
product_id: 81014128
title: "DollaTek HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino"
brand: "dollatek"
price: "€ 11.05"
currency: EUR
in_stock: true
reviews_count: 3
category: "Dolla Tek"
url: https://www.desertcart.nl/products/81014128-dollatek-hc-sr04-ultrasonic-module-distance-measuring-transducer-sensor-arduino
store_origin: NL
region: Netherlands
---

# <2mA low power 0.3cm resolution 2cm-500cm range DollaTek HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino

**Brand:** dollatek
**Price:** € 11.05
**Availability:** ✅ In Stock

## Summary

> 📡 Unlock smart sensing — never miss a beat in your next project!

## Quick Answers

- **What is this?** DollaTek HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino by dollatek
- **How much does it cost?** € 11.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/81014128-dollatek-hc-sr04-ultrasonic-module-distance-measuring-transducer-sensor-arduino)

## Best For

- dollatek enthusiasts

## Why This Product

- Trusted dollatek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Focused Detection Angle:** Narrow <15° beam ensures targeted obstacle detection without noise.
- • **Instant Obstacle Alerts:** Real-time ultrasonic pulses deliver immediate feedback for dynamic environments.
- • **Precision Sensing at Scale:** Measure distances from 2cm up to 5 meters with pinpoint 0.3cm resolution.
- • **Ultra-Low Power Efficiency:** Consumes less than 2mA, perfect for energy-conscious projects.
- • **Seamless Arduino Compatibility:** Plug-and-play with any Arduino microcontroller for rapid prototyping.

## Overview

The DollaTek HC-SR04 Ultrasonic Module is a compact, Arduino-compatible distance sensor delivering precise measurements from 2cm to 5 meters with 0.3cm resolution. Operating at 5V DC and consuming under 2mA, it features a focused <15° detection angle for reliable obstacle sensing. Ideal for DIY electronics and prototyping, this module offers instant ultrasonic feedback to elevate your smart device capabilities.

## Description

Features:100% brand new and high qualityDC 5V Ultrasonic module HC-SR04 distance measuring transducer sensor for arduinoPower supply :5V DCQuiescent current : <2mA Effectual angle: <15° Resolution : 0.3 cmMode of connection:VCC, trig(T), echo(R), GNDThe basic operation principle is below:1.use IO port TRIG to trigger ranging. It needs 10 us high level signal at least2.Module can send 8 pro 40 kz square wave automatically, and will test if there is any signal returned.3.If there is signal returned, output one high level signal via IO port ECHO. The duration of the high level signal is the time from transmitter to receiving with the ultrasonic.Package Included:1x DollaTek HC-SR04 Distance Sensor Module

Review: Assolutamente impreciso, non so se ho ricevuto un unità difettosa io ma i valori intermedi sono praticamente inesistenti. Si passa da un estremo all'altro, e la sensibilità di rilevazione è bassissima. Di fatto è un problema noto su questo genere di sensori, ma solitamente c'è margine in fase di programmazione. In questo è stato impossibile
Review: Utilisation avec Arduino en Radar distance pas très précise mais permet détection de personnes

## Features

- This Ultrasonic Sensor instantly detect obstacles with the microcontroller of your choice!
- Power supply: 5V DC, quiescent current: <2mA,effectualangle: <15 ranging distance: 2cm~500 cm resolution: 0.3 cm
- Arduino-compatible; Note: This is not original Arduino product.it is only a substitute accessories from DollaTek

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DK55VN7 |
| Best Sellers Rank | 9,144 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 2 in Ultrasonic Proximity Sensors |
| Guaranteed software updates until | unknown |
| Manufacturer | DollaTek |
| Package Dimensions | 10.6 x 10.1 x 1.9 cm; 10 g |

## Images

![DollaTek HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino - Image 1](https://m.media-amazon.com/images/I/71fEtz9I3+L.jpg)

## Customer Reviews

### ⭐ Review
*by F***O on 9 September 2025*

Assolutamente impreciso, non so se ho ricevuto un unità difettosa io ma i valori intermedi sono praticamente inesistenti. Si passa da un estremo all'altro, e la sensibilità di rilevazione è bassissima. Di fatto è un problema noto su questo genere di sensori, ma solitamente c'è margine in fase di programmazione. In questo è stato impossibile

### ⭐⭐⭐⭐⭐ Review
*by H***E on 27 March 2022*

Utilisation avec Arduino en Radar distance pas très précise mais permet détection de personnes

### ⭐⭐⭐⭐ Review
*by M***L on 24 October 2025*

El sensor HC-SR04 permite medir distancias entre 2 cm y 400 cm con buena precisión, utilizando pulsos ultrasónicos. Compatible con Arduino y otros microcontroladores, ofrece salida digital sencilla y tiempos de respuesta rápidos. Los usuarios valoran su fiabilidad, bajo consumo y facilidad de integración en proyectos educativos, familiares o técnicos. Ideal para sistemas modulares donde se requiere trazabilidad espacial, validación operativa y mínima dependencia de sensores ópticos.

## Frequently Bought Together

- DollaTek HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino
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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-19*