HC-SR04 Ultrasonic Sensor Module 3PCS with Brackets & Cable Ferwooh

Description

Product Overview

The Ferwooh HC-SR04 ultrasonic sensor module is a compact, high‑performance distance measuring device designed for a wide range of industrial and hobbyist applications. Each sensor operates on a 5 V DC supply and draws less than 2 mA of static current, making it energy‑efficient for battery‑powered projects. The sensor emits a 40 kHz ultrasonic burst and measures the echo return time to calculate distance with a resolution of 0.3 cm across a range of 2 cm to 450 cm. The package includes three identical sensor modules, three sturdy mounting brackets, and flexible cables with an anti‑reverse pin socket that simplifies wiring and reduces the risk of connection errors. The modules are built with a durable ABS housing and a transparent acoustic window that protects the transducer while allowing accurate sound propagation. All components are tested for reliability and come with a clear labeling system for quick identification during assembly.

Usage

These ultrasonic sensor modules are ideal for robotics, automated guided vehicles, level detection in tanks, obstacle avoidance, and proximity sensing in smart home devices. Their compact size (6.81 × 3.11 × 0.75 in) and lightweight design (2.19 oz) allow easy integration into tight spaces, such as drone frames, robotic arms, and handheld tools. The 5 V operating voltage matches common microcontroller platforms like Arduino, Raspberry Pi, and ESP32, enabling straightforward programming via the VCC, TRIG, ECHO, and GND pins. The included mounting brackets provide a secure attachment to metal or plastic surfaces, while the cables offer flexible routing to keep the sensor positioned optimally for accurate readings. Whether you are building a line‑following robot, a parking assistance system, or a liquid level monitor, the HC‑SR04 modules deliver consistent performance in indoor and outdoor environments, tolerating temperature variations and minor vibrations.

Why Choose Us

Choosing Ferwooh means selecting a brand committed to quality, precision, and customer support. Each sensor undergoes rigorous calibration to ensure measurement accuracy within the specified tolerance. The anti‑reverse pin socket design reduces installation time and minimizes the chance of miswiring, a common issue in DIY projects. Our packaging includes comprehensive documentation, wiring diagrams, and example code snippets to help users get started quickly. In addition, Ferwooh offers responsive after‑sales service, with technical assistance available for troubleshooting, firmware updates, and integration advice. The product’s best‑seller rank (#29 in Ultrasonic Proximity Sensors) reflects its popularity among engineers and makers who trust its reliability for critical applications. With a 4.8‑star rating from verified customers, the HC‑SR04 set has proven its value in real‑world deployments.

Key Features

• High‑precision distance measurement from 2 cm to 450 cm with 0.3 cm resolution for accurate sensing.
• Low power consumption (<2 mA) and 5 V operation compatible with most microcontroller boards.
• Robust ABS housing and transparent acoustic window protect the transducer for long‑term durability.
• Easy installation using anti‑reverse pin sockets, mounting brackets, and flexible cables.
• Responsive customer support and detailed documentation to ensure successful integration.

FAQ

What is the maximum detection range of the HC‑SR04 sensor?

The sensor can reliably detect objects up to 450 cm away, with a minimum detection distance of 2 cm.

Can the sensor be used with a Raspberry Pi?

Yes, the sensor operates at 5 V and uses simple digital I/O pins, making it compatible with Raspberry Pi, Arduino, ESP32, and similar platforms.

How do I connect the anti‑reverse pin socket?

The socket is designed to prevent incorrect polarity. Align the VCC, TRIG, ECHO, and GND pins with the corresponding markings on the socket, then push the cable firmly until it clicks into place.

Is the sensor suitable for outdoor use?

While the sensor is primarily intended for indoor environments, it can function outdoors if protected from direct rain and extreme temperatures. Using a waterproof enclosure is recommended for outdoor installations.

What warranty does Ferwooh provide?

Ferwooh offers a one‑year limited warranty covering manufacturing defects, along with technical support to assist with any integration challenges.