Best Ultrasonic Proximity Sensors of 2026
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Ultrasonic proximity sensors are a type of sensor that uses sound waves to detect nearby objects. These sensors emit high-frequency sound waves that bounce off of objects and return to the sensor. By measuring the time it takes for the sound waves to return, the sensor can determine the distance to the object. Ultrasonic proximity sensors are commonly used in robotics, automation, and security systems. They are versatile and can be used in a variety of applications, from detecting the presence of objects to measuring the level of liquids in a container.
At a Glance: Our Top Picks
Top 10 Ultrasonic Proximity Sensors
ELEGOO HC-SR04 Ultrasonic Distance Sensor
The ELEGOO HC-SR04 Ultrasonic Distance Sensor is a set of 5 ultrasonic sensors consisting of ultrasonic transmitter, receiver, and control circuit. It can measure distance ranging from 2cm to 500cm with a resolution of 0.3cm. It operates on a 5V DC power supply and consumes less than 2mA. The sensors are compatible with Arduino UNO MEGA Nano Robot XBee ZigBee. The package comes with a little gift.
ACEIRMC HC-SR04 Ultrasonic Sensor Distance Module
The ACEIRMC HC-SR04 Ultrasonic Sensor Distance Module is a high-quality ultrasonic proximity sensor designed for Nano Robot XBee ZigBee by ElecRight. It features a stable performance and accurate measurement distance using IO trigger for at least 10us high-level signal. The module detection distance ranges from 0.78196 in/ (2cm500cm) with high precision up to 0.12 in/(0.3 cm) and detection angle. The device is also fully compatible with GH-311 anti-theft module.
DIYables HC-SR04 Ultrasonic Sensor
The DIYables Ultrasonic Sensor is a handy tool for measuring distances from 2 cm up to 450 cm. This wide range lets you accurately detect objects near or far, which is perfect for projects like obstacle avoidance. It runs on a 5V power supply, making it easy to power with common microcontrollers. Plus, it supports logic voltages of either 3.3V or 5V, so you can use it with popular boards like Arduino, ESP32, ESP8266, or Raspberry Pi. This flexibility means you can integrate the sensor into many different electronics projects without hassle.
WWZMDiB HC-SR04 Ultrasonic Sensor Module 2-Pack
The WWZMDiB Ultrasonic Sensor is a handy tool for measuring distance using sound waves. It sends out a sound pulse and calculates how far an object is by timing how long the echo takes to return. This sensor works on a simple 5V power supply and uses very little current, making it energy-efficient for your projects. It can accurately measure distances ranging from 2 centimeters to 4.5 meters, giving you precise readings with an accuracy of up to 0.3 centimeters. Whether you’re working on robots or other electronics, this sensor makes distance detection easy and reliable.
WWZMDiB JSN-SR04T Ultrasonic Sensor
The WWZMDiB Ultrasonic Sensor features a waterproof design, making it ideal for outdoor use. With a working voltage of DC 3-5.5V, it is easy to integrate into various projects. This sensor has a measuring range of 25cm to 4 meters, allowing you to accurately gauge distances in a variety of applications. Additionally, it offers a detecting range of 20cm to 600cm with a precision of 2mm, ensuring reliable measurements. Whether you're working on obstacle avoidance or security systems, this sensor brings convenience and accuracy to your projects.
GODIYMODULES PWM DC5V Waterproof Ultrasonic Sensor
The GODIYMODULES Waterproof Ultrasonic Sensor uses ultrasonic waves to measure the distance between the sensor and objects, helping you detect nearby items accurately. Its IP67 waterproof design means the sensor is well-protected from water and dust, making it reliable even in wet or harsh environments. The compact structure with fixed screw holes makes installation easy and secure, so you can quickly set it up without hassle. Plus, its low power consumption feature helps you save energy by adjusting power use based on your actual needs, ensuring efficient operation in various applications. This sensor is a practical choice for projects needing precise distance detection with durability and ease of use.
GODIYMODULES RCWL-1670 Waterproof Ultrasonic Sensor
The GODIYMODULES Ultrasonic Sensor is a waterproof device designed to measure distances from 2cm to 400cm, making it perfect for various projects requiring precise range detection. It operates on a wide voltage range of 3 to 5 volts, giving you flexibility in power supply options. This sensor uses very little power when on standby, helping you save energy in your applications. Additionally, it includes both a transmitter and receiver separated into two parts, ensuring accurate and reliable distance measurements. Its control system is compatible with popular modules like the HC-SR04, so you can easily integrate it into your Arduino projects.
MakerHawk HC-SR04T Ultrasonic Sensor
The MakerHawk Ultrasonic Sensor is a compact and user-friendly device perfect for your Arduino projects. It operates on low voltage, ensuring minimal power consumption, which is great for energy-efficient setups. You can expect high accuracy in distance measurements, with a resolution of about 0.5cm and a range of up to 5 meters, making it ideal for precise applications. Additionally, its strong anti-interference features allow it to perform reliably in challenging environments, ensuring consistent results regardless of conditions.
FainWan JSN-SR04T Waterproof Ultrasonic Sensor 2pcs
The FainWan JSN-SR04T Sensor is designed with a waterproof sealed emitter, making it ideal for outdoor uses like car reversing and security alarms. Its wire-enclosed waterproof probe ensures reliable performance even in wet or harsh environments, although it should not be submerged underwater. Operating at a 5V DC voltage with low power consumption, it is energy-efficient for your projects. With a detection range between 25 cm and 4 meters and a wide 70-degree sensing angle, this sensor helps you measure distances accurately and avoid obstacles, making it perfect for traffic control, industrial inspections, and automatic control systems.
EC Buying HC-SR04 Ultrasonic Sensor
The EC Buying Ultrasonic Sensor is designed for precise distance measurement, ranging from 2cm to 500cm with a fine resolution of 0.3cm. This feature allows you to achieve accurate readings for various applications, whether you're working on robotics or automation projects. Connecting the sensor is straightforward, thanks to its VCC, trig, echo, and GND pins, making integration easy for you. Additionally, its low power consumption of less than 2mA is perfect for battery-operated devices, ensuring you can use it without draining your power source quickly. With reliable performance, you can trust this sensor for consistent results in your projects.
Frequently Asked Questions (FAQs)
1. What are the disadvantages of using ultrasonic sensors?
Some disadvantages of using ultrasonic sensors include limited testing distance, inaccurate readings, and inflexible scanning methods. It's important to consider these limitations when choosing to use ultrasonic proximity sensors.
2. How accurate are ultrasonic proximity sensors?
Ultrasonic proximity sensors can achieve an accuracy of up to 1% of the set measuring range. This means that objects can be detected with an accuracy of 1 mm at a distance of 10 cm. However, it's crucial to emit the sound at a fixed frequency for reliable operation.
3. Can ultrasonic sensors penetrate walls?
Yes, ultrasonic sensors, as a type of mechanical wave, can penetrate metal walls. However, their ability to penetrate other materials may vary, and it's important to consider the properties of the specific material in question.
4. What should I avoid with ultrasonic level sensors?
When using ultrasonic level sensors, it's important to avoid inappropriate applications and soft or sound-absorbent materials, such as powders or foamy surfaces, as they can significantly reduce sensing ranges. Additionally, areas with heavy suspended dust can attenuate the sensor's signal.
5. How far away can the ultrasonic sensor detect objects?
Ultrasonic sensors have a limited range and can typically detect objects up to about 70 feet (21 meters) away. However, it's important to note that they may not work as accurately in vapor environments that change the speed of sound from that of air.
During our ultrasonic proximity sensor research, we found 24 ultrasonic proximity sensor products and shortlisted 10 quality products. We collected and analyzed 6,492 customer reviews through our big data system to write the ultrasonic proximity sensors list. We found that most customers choose ultrasonic proximity sensors with an average price of $17.89.
The ultrasonic proximity sensors are available for purchase. We have researched hundreds of brands and picked the top brands of ultrasonic proximity sensors, including ELEGOO, ACEIRMC, DIYables, WWZMDiB, GODIYMODULES. The seller of top 1 product has received honest feedback from 2,221 consumers with an average rating of 4.9.
Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.