Ultrasonic sensors are common in everyday life. When we talk about it, the first thing that comes to mind is the ardunio smart car. Usually, it comes with an ultrasonic sensor module, namely hc sr04. It is the key to the robot's obstacle avoiding. This sensor module price is usually low.
HC SR05 and US-100 are consumer-grade products. In addition, we offer a wide range of industrial grade ultrasonic range finders. In general, we supply more than 20 types of ultrasonic sensor modules.
Why choose our ultrasonic distance sensor?
① Cheap price and fast delivery;
② Easy to install, solid and reliable;
③ Small size and integrated module design;
④ Over 20 kinds of ultrasonic sensor modules to meet your various needs;
⑤ High accuracy, fast response speed and low power consumption;
⑥ Built-in intelligent algorithms to filter out interfering sound waves;
⑦ Waterproof structure design, protection grade IP67 and IP68;
⑧ Several blind zones optional, the minimum blind zone 1cm;
⑨ Different ranging options, such as 25-800cm, 3-450cm, 25-1000cm and so on;
⑩ Several output options, such as RS485, UART, PWM, etc.;
20+ Types of Ultrasonic Sensor Modules for Choice
If you don't require high measurement accuracy, you can choose these sensors, such as hc sr04, jsn sr04t, us 100, etc. They meet most arduino or raspberry pi project needs. On the contrary, you need to select other ultrasonic distance sensors.
(1) HC SR04 Module
The core of the HC-SR04 module are two ultrasonic sensors. One acts as a transmitter. It converts electrical signals into 40 KHz ultrasonic pulses. The receiver listens for the transmitted pulses. If they are received, it generates an output pulse. Its width can determine how far the pulse travels.
This ultrasonic range finder is small in size. It's easy to use in any robotics project. And provides excellent non-contact range detection between 2 cm and 400 cm. The accuracy is 3mm. Blind zone is small — 2cm. It operates at 5 volts. So we can connect it directly to Arduino or any other 5V microcontrollers.
HC SR04 Sensor Specification Sheet:
| Operation Voltage |
DC3.3V ~ 5V |
| Operating Current |
15mA |
| Frequency of Ultrasonic Distance Sensor |
40KHz |
| Max Ranging Distance |
4m |
| Min Range |
2cm |
| Measurement Accuracy |
3mm |
| Measuring Angle |
15° |
| Trigger Input Signal |
10µS TTL pulse |
| Sensor Size |
45*20*15mm |
(2) JSN SR04T Ultrasonic Range Finder
This ultrasonic sensor module is also 40khz. Its structure is different from hc sr04 module. It is not split type sensor. Module includes integrated ultrasonic transceiver and control circuit. It is waterproof and has stable performance.
The JSN SR04T provides non-contact distance sensing from 20cm-600cm. Ranging accuracy is as high as ±1mm. Its detection range is bigger than the above HC SR04 sensor.
JSN SR04T Module Technical Data
| Working Voltage |
DC 3.0~5.5V |
| Work Current |
Max 8mA |
| Sensor Frequency |
40KHz |
| Max Detection Range |
6m |
| Min Measurement Range |
20cm |
| Remote Accuracy |
±1cm |
| Resolution |
1mm |
| Sensing Angle |
70° |
| Trigger Input Signal |
10µS TTL pulse |
| Output Signal |
Pulse Width Level Signal or TTL |
| Working Temp. |
-20~+70℃ |
| Product Color |
Black Sensor + Blue PCB Board |
| Ultrasonic Distance Sensor Size |
42*29*12mm |
(3) US 100 Ultrasonic Distance Sensor
The US 100 module looks a lot like the HC SR04. Besides, its frequency is also 40KHz. This ultrasonic range finder has a distance of 2cm~450cm. It has a wide voltage input range of 2.4~5.5V. The static power consumption is less than 2mA.
There is built-in temperature compensation function. Therefore, it can correct the distance measurement results. In addition, this module also has multiple communication methods such as GPI0 and serial port. It works stably and reliably.
US 100 sensor specification:
| Operating Voltage |
DC 2.4V~ DC5.5V |
| Static Current |
2mA |
| Sensor Frequency |
40KHz |
| Sensing Range |
2cm ~ 450cm |
| Blind Zone |
2cm |
| Detection Accuracy |
0.3cm+1% |
| Resolution |
1mm |
| Sensing Angle |
less than 15° |
| Output Signal |
Level or UART |
| Operation Temp. |
-20~+70℃ |
| Serial port configuration in UART mode |
Baud rate 9600, start bit 1, stop bit 1, data bit 8, no parity check |
| Ultrasonic Sensor Module Size |
45*20*15mm |
(4) JSN-SR20-Y1 Ultrasonic Ranging Module
The jsn-sr20-y1 ultrasonic range finder module is waterproof. This sensor is highly adaptable to the working environment. It provides 2~500cm non-contact distance sensing function. There are many different output methods.
This module has 6 working modes to choose from. Users can switch according to their actual needs. It detects ultra-small blind zone. The power supply range is wide. Besides, jsn-sr20-y1 sensor has low power consumption. Measurement accuracy and resolution are high.
| Sensor Operation Voltage |
DC 3.0~5.5V |
| Working Current |
less than 8mA |
| Transducer Frequency |
40KHz |
| Maximum Detection Range |
500cm |
| Blind Spot |
2cm |
| Remote Accuracy |
±1cm |
| Detection Angle |
60° |
| Input Trigger Signal |
TTL pulses over 20uS, or Serial port sends command 0X55 |
| Module Output Signal |
PWM, UART, Switching |
(5) A02YYUW Dual Ultrasonic Sensor Module
The sensor uses a split type dual probes module. Moreover, there is a waterproof housing outside. The protection class is up to IP67. You can use this ultrasonic distance sensor in different environments.
Its measuring range is 3~450cm. This ultrasonic range finder is suitable for short distance detection. For example, we can apply the sensor to car parking aids and robots obstacle avoidance. It has low power consumption and low standby current.
A02yyuw sensor module technical data:
| Rangefinder Work Voltage |
DC 3.3~5.0V |
| Average Current |
about 8mA |
| Blind Zone Distance |
3cm |
| Measuring Range |
3~450cm |
| Protection Class |
IP67 |
| Measurement Accuracy |
±(1+S*0.5%) |
| Reference Angle |
about 60° |
| Sensor Output Mode |
PWM, UART, Switching |
(6) USSR-A07- V1.0 Horn Shape Ultrasonic Range Finder
This ultrasonic sensor module has many advantages. Firstly, it has a large measuring range. The effective detection range is from 25cm-800cm. It adopts a trumpet design. The angle of close distance measurement is controllable. At the same time, it will enhance the signal of long distance detection.
In addition, it adopts an integrated waterproof design. Besides, there is a temperature compensation function. So it has strong environmental adaptability. Finally, you can also use this ultrasonic distance sensor for level measurement.
| Sensor Module Operation Voltage |
DC 3.3V ~ 5.0V |
| Detection Accuracy |
±(1+S*0.3%) |
| Blind Zone |
25cm |
| Measuring Range |
25~800cm for flat surface, 25~500cm for human |
| Protection Class |
IP67 |
| Temperature Compensation |
yes |
| Output Mode |
UART, PWM, Switching |
(7) USSR-L08-V1.0 Underwater Ultrasonic Distance Sensor
This ultrasonic sensor module is different from the above sensors. It is special for underwater ranging and obstacle avoidance. Besides, this ultrasonic range finder can work stably under 10 meters water. The protection class is up to IP68. It allows underwater robots to realize control at will. The detection range is 200 cm.
In addition, this sensor has many other advantages. It has a small blind zone, and the smallest can be 5cm. Moreoer, this sensor has high precision and fast response (about 7ms). The module is small in size. It does not occupy space. So it's easy to integrate into customer's project.
| Module Operating Temp. |
-15~+55℃ |
| Voltage Range |
DC 3.3 ~ 5V |
| Stand-by current |
≤11mA |
| Blind Zone Distance |
5cm |
| Detection Range of Flat Object |
5~200cm |
| Output Response Time |
7ms |
| Output Mode of Ultrasonic Range Finder |
UART, RS485 |
| Ranging Accuracy |
±(1+S*1% |
(8) USSR-A13-V1.0 Multi-purpose Wireless Ultrasonic Sensor Module
This sensor has a range of 200cm and a blind spot of 25cm. It uses ultrasonic sensing technology with reflective structure for distance measurement. Its advantages are high sensitivity and small angle. In addition, there are multiple output modes to choose from, such as UART, RS485, PWM and switch quantity.
This ultrasonic range finder has wide application ranges. For example, you can apply it for trash bin overflow detection. Or you can also use it for wireless liquid level detection. And it is also suitable for fuel tank level measurement. Moreover, this sensor can be with Nb-IoT. The module can automatically report data online. So it is convenient to manage garbage bins everywhere. It reduces labor costs and improves the efficiency of sanitation management.
| Input Voltage |
DC 3.3 ~24V |
| Average Operating Current |
≤8mA |
| Sensor Blind Zone |
0~25cm |
| Ranging Distance for Flat Object |
25~200cm |
| Detection Range of Flat Object |
5~200cm |
| Reference Angle |
about 20° |
| Output Mode of Ultrasonic Distance Sensor |
UART, RS485,PWM, Switching |
| Flat Object Measurement Accuracy |
±(1cm+S*0.3%) |
| Protection Class |
IP67 |
| Wireless Network Standard |
NB-IoT, CAT-M1 |
| Battery Lifetime |
5 years |
(9) USSR-A21-V1.0 Ranging Module
This ultrasonic range finder uses the dual sensor module structure. There is intelligent sound wave processing technology. The intelligent algorithm inside can filter interfering sound waves. The output data is more stable and reliable. So it can meet the needs of automatic robot control and obstacle avoidance well.
Its measuring range is 3~500cm. Importantly, you can set 5 kinds of range levels by command. The blind zone is only 3cm. Besides, it has large detection angle. The horizontal angle of the twin probes is 40~65°. Vertical angle is 60~80°. In addition, this ultrasonic distance sensor has quick response time.
| Sensor Operation Voltage |
3.3-24V |
| Average Operating Current |
≤6mA |
| Protection Class |
IP67 |
| Blind Spot |
3cm |
| Module Ranging Distance for Flat Object |
3~500cm |
| Measurement Accuracy at Room Temperature |
1+(S*0.3%) |
| Temperature Compensation |
yes |
| Output Mode of Ultrasonic Sensor Module |
UART, PWM, Switching, RS485, IIC |
(10) USSR-A06-V1.1 Ultrasonic Range Finder
This ranging module has small size. The size is only 4.1*2.8cm. So it does not take up space for customer product design. It is convenient and easy to install. The sensor has temperature compensation function. It automatically corrects temperature deviations. Within -15℃ to +60℃, our ultrasonic sensor can measure distance stably.
If you measure flat objects, the range can reach 600cm. The module has high precision. Minimum error is less than 5mm. In addition, this sensor has low power consumption. During operation, the current is 15mA~20mA.
| Sensor Module Operation Voltage |
DC 3.3V~ DC 5.0V |
| Static Current |
less than 8uA |
| Average Working Current |
≤20mA |
| Reference Angle |
≈45° |
| Blind Spot Distance |
25cm |
| Detection Range for Flat Objects |
25~600cm |
| Measuring Accuracy |
±(1+S*0.3~0.5%) cm |
| Temperature Compensation |
yes |
| Output Mode |
UART, PWM, Switching |
(11) USSR-A12- V1.0 Ultrasonic Range Detector
This ultrasonic distance sensor has wide operating voltage ranges. It is from 3.3V to 24V. The detection angle is smaller than above ranging module. So it has better anti-interference capability. Moreover, this module can be resistant to high and low temperatures. There is with temperature compensation function. So it can work stably within -15℃ and 60℃.
Its ranging distance is 25~500cm. Measurement range is long. The working current is less than 10mA. Therefore, the power consumption is low. It has wide applications, such as horizontal ranging, parking management, object proximity, waste overflow monitoring, etc.
| Operation Voltage Range |
DC 3.3 ~ 24V |
| Work Current when Measuring |
＜10mA |
| Detection Angle |
about 21° |
| Measuring Accuracy |
±（1+S*0.3%) |
| Ranging Distance |
25~500cm |
| Blind Spot Range |
0~25cm |
| Temp. Compensation |
Yes |
| Output Mode of Sensor |
PWM, UART, Switching, RS485 |
| Operating Temp. |
-15~+60℃ |
| Protection Class |
IP67 |
(12) USSR-A16-V1.0 15m Long Range Ultrasonic Sensor Module
Compared to above sensors, this module has much longer detection range. It's up to 1500cm. Of course, the blind zone is also bigger ~ 50cm. Besides the ranging and proximity detection, it is also suitable for level measurement. For example, you can use it to detect level of grain silos. Or you can apply it for water level measurement.
This ultrasonic range finder uses water-proof transducer and housing. It has good moisture and dust resistance. So our sensor has strong adaptability to the working environment. In addition, there is temperature compensation inside. As a result, the measurement data is stable and highly accurate.
| Working Voltage Range |
3.3 ~ 24V DC |
| Average Operating Current |
no less than 15mA |
| Reference Detection Angle |
about 40° |
| Detection Accuracy |
±（1+S*0.3%) cm |
| Detection Range for Flat Object |
50 ~ 1500cm |
| Blind Zone Range |
0 ~ 50cm |
| Temp. Compensation |
Yes |
| Available Output Mode |
UART, PWM, Switching, RS232, RS485 |
(13) USSR-A19-V1.0 Large Detection Angle Ultrasonic Distance Sensor
This ultrasonic sensor module has large FOV detection angle range. The max measurement angle is about 60°. Moreover, its protection class is IP67. And it uses the one-piece ultrasonic transceiver. Therefore, we can apply this sensor for various humid and harsh measurement situations. Its ranging distance is 28~450cm.
In addition, this ultrasonic range finder has stable and high accuracy. The resolution is 1mm. And detection accuracy is ±(1+S*0.3%). It has wide applications, such as smart parking, smart agriculture, level measurement and robot obstacle avoiding, etc.
| Module Operation Voltage |
3.3 ~ 5V DC |
| Average Working Current |
≤8mA |
| Reference Measuring Angle |
about 60° |
| Measurement Accuracy |
±（1+S*0.3%) cm |
| Ranging Distance |
28 ~ 450cm |
| Blind Zone Range |
0 ~ 28cm |
| Temp. Compensation Function |
Yes |
| Available Output Mode |
PWM, UART, Switching, IIC, RS485 |
(14) USSR-A22-V1.0 Small Blind Zone Dual Ultrasonic Sensor Module
Compared to the above sensors, this one has the smallest blind zone. It is as low as 1cm. Besides, the module has fast response time ~ 13ms. The detection angle is adjustable. So it is suitable for different application scenes. Additionally, there is noise reduction function inside. It can recognize interfering sound waves and automatically performs filtering.
This ultrasonic distance sensor supports several power supply types, such as battery, USB and switching power supply, etc.
| Sensor Operation Voltage Range |
3.3 ~ 12 VDC |
| Average Operating Current |
≤9mA |
| Measuring Angle |
30° to 60° |
| Detection Accuracy at Room Temp. |
1+（S*0.5%) cm |
| Ranging Distance for Flat Object |
1~300cm |
| Blind Zone Distance |
0 ~ 1cm |
| Temp. Compensation Function |
Yes |
| Protection Class |
IP67 |
| Sensor Module Output Mode |
UART, PWM, Switching, RS485, IIC |
(15) USSR-A05-V1.1 Distance Measuring Module
In fact, this is also the reverse radar. It includes 4pcs of water-proof sensors and a host module. Each sensor has the large detection range. The max angle is up to 60°. The module can measure the distance to objects in four different directions. Its measuring range is from 25cm to 450cm. And sensor cable length is 2.5 meters.
This ultrasonic range finder has quick response speed. We can use it for many occasions, such as robot obstacle avoidance, parking management, object proximity monitoring, ranging, etc.
| Output Type |
UART, RS485, relay |
| Work Voltage |
9 ~ 36 VDC |
| Average Operation Current |
≤25mA to 45mA |
| Blind Spot Distance |
0~28cm |
| Detection Range for Flat Object |
28~450cm |
| Working Cycle |
280ms |
| Sensor Response Time |
less than 1s |
| Reference Angle at 100cm |
≈40° |
| Sensor Center Frequency |
40±1.0khz |
| Operation Temp. |
-15 to +60℃ |
(16) USSR-A17- V1.0 Small Angle 1000cm Range Ultrasonic Level Sensor
This ultrasonic sensor module has small measurement angle. The angle is about 15°. It has high sensitivity and anti-interference ability. Our sensor has good accuracy. The minimum error is less than 1cm. Its measuring range is 25cm to 1000cm. We usually use it for level measurement, such as cellar wells, sewer water levels, etc.
Conventional sensors can have condensation or frost on the surface. They can interfere with the proper functioning of the sensor. Reduce the sensitivity of the sensor. Finally, it will make the detection data inaccurate. However, our module design can prevent and eliminate these condensation water.
| Sensor Output Type |
PWM, UART, RS485 |
| Working Voltage |
3.3 ~ 5 VDC |
| Static Current |
＜10μA |
| Current under Detection Status |
＜15mA |
| Blind Spot Range |
0~25cm |
| Meauring Range |
25~1000cm |
| Reference Detection Angle |
≈15° |
| Sensor Response Time |
0.9~2.5 S |
| Reference Angle |
≈40° |
| Measurement Accuracy |
± (1+S*0.3%) cm |
| Operating Temp. |
-15 ~ +60℃ |
(17) GY-US42V2 Distance 720cm Ultrasonic Range Finder
This ranging module is with I2C interface. It is plug-and-play and very convenient. GY-US42V2 can replace the MB1242/SRF02 ultrasonic sensor. It is suitable for long distance measurement. The detection range is from 20cm to 720cm. The module has 3 ways to read data, namely UART (TTL level), IIC, and Pulse PWM.
The sensor uses the one-piece ultrasonic transceiver. So it is small in size and light in weight. You can use it for wide applications, such as intelligent robot & vehicle, quadcopter, body measurement, etc.
| Meauring Range |
20cm ~ 720cm（vcc=5v） |
| Resolution |
1cm |
| Response Frequency |
15 Hz |
| Working Voltage |
3~5 V |
| Operation Current |
9mA （vcc=5v） |
| Working Temp. |
-20℃ ~ +65℃ |
| Sensor Size |
21.5*21*24.5mm |
| Sensor Output |
IIC, UART, PWM |
(18) IoT Wireless LoRaWAN Ultrasonic Distance Sensor
This product is a LoRaWAN distance detection sensor. Its purpose is to measure the distance between the sensor and a flat object. The module uses ultrasonic sensing technology. There is temperature compensation function internally. So increase the reliability of the data. Finally, it will upload the data wirelessly to the LoRaWAN IoT server.
The ultrasonic sensor module has a long detection range up to 750cm. It also has many application ranges. For example, we can apply it for level measurement, level ranging, parking management and presence detection.
| Meauring Distance |
280 ~ 7500mm |
| Detection Accuracy |
±(1cm+S*0.3%) |
| Wireless Function |
LoRaWAN v1.0.3 Class A protocols |
| Power Supply Voltage |
2.5 ~3.6 V |
| Battery |
8500Ah (lifetime up to 5 years) |
| Working Temp. |
-40℃ ~ +85℃ |
| Protection Class |
IP66 |
| Cable Length |
25m |
(19) Ranging 300cm Ultrasonic Range Finder with Display
It is different from the above ultrasonic sensors. This ultrasonic ranging module is with the LED display. So it can show the specific distance data. There are dual transducers on the module. One is transmitter and the other is receiver. The sensor frequency is 40khz. Its measuring range is from 3cm to 300cm.
And the beam angle is about 45°. So its detection angle is a bit wide. It is suitable for AGV cart obstacle avoidance and teaching measurement. In addition, this ultrasonic distance sensor has high accuracy. There are several output modes for choice.
| Sensor Output |
TTL, square wave output, RS485 |
| Operating Voltage |
3.3 ~ 24V |
| Measuring Distance |
3~300cm |
| Blind Zone |
0~3cm |
| Operating Power Consumption |
less than 10mA |
| Sensor Accuracy |
± (0.5 + 0.006 * distance) cm |
| Beam Angle Range |
45° ± 15° |
(20) Small angle & large range sensor (distance 600cm)
This ultrasonic sensor module uses the integrated transducer. Frequency is 40khz. The probe has waterproof and dustproof protection class to a certain extent. Because of the housing, the sensor has small beam angle. The emitting angle is about 20°.
It has long ranging distance ~ 600cm. And the blind zone is 25cm. This ultrasonic range finder has quick response time and high accuracy.
| Ultrasonic Distance Sensor Output |
RS485, NPN, PNP, UART |
| Input Voltage |
5~24V |
| Detection Range |
25~600cm |
| Blind Spot |
0~25cm |
| Working Current |
less than 20mA |
| Sensor Accuracy |
± 1+(S * 0.3%) cm |
| Emitting Angle Range |
20° |
How does ultrasonic distance sensor work?
Here, we take the hc-sr04 sensor as an example to illustrate its working principle.
