Anonymous
Mar 26, 2026
Rating: 5/5
Great for school robotics
Bought these for a university project. They are very responsive and the code examples found online work immediately. Highly recommended for beginners.
Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Frequency | 40 kHz |
| Sensor Type | Ultrasonic Transceiver (Split) |
| Detection Range | 2 cm to 400 cm |
| Beam Angle | 15 degrees |
| Supply Voltage | 3.3V - 5V DC |
| Current Consumption | 15 mA (Typical) |
| Interface | Digital Trigger/Echo |
| Package Quantity | 1 Pair (Transmitter + Receiver) |
| Material | ABS Plastic Housing |
| Application | Robotics, Obstacle Avoidance, Distance Measurement |
Anonymous
Mar 26, 2026
Rating: 5/5
Great for school robotics
Bought these for a university project. They are very responsive and the code examples found online work immediately. Highly recommended for beginners.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect for Arduino Projects
These sensors work flawlessly with my Arduino Uno. The split design makes it easier to mount them at specific angles for my robot car. Great value for the price.
Anonymous
Mar 13, 2026
Rating: 4/5
Solid basic sensor
We use these in our workshop for simple distance alarms. They are reliable enough for non-critical applications. Just ensure you provide a stable 5V supply.
Anonymous
Mar 11, 2026
Rating: 5/5
Excellent value pair
Getting a transmitter and receiver separately allows for creative mounting solutions. The build quality feels decent for such a low-cost component.
Anonymous
Mar 08, 2026
Rating: 4/5
Good accuracy, cheap price
I tested the range and it is quite accurate up to about 3 meters. Beyond that, it gets a bit jittery, but for the cost, you cannot complain. Shipping was fast.
Anonymous
Mar 06, 2026
Rating: 3/5
Works but sensitive to noise
The sensor works as described, but I noticed some interference when running motors nearby. Added a capacitor and it stabilized. Good product if you know how to handle noise.
Q: Is the operating voltage strictly 5V?
A: While 5V is optimal for maximum range, these sensors typically operate reliably between 3.3V and 5V. However, the detection range may decrease slightly at 3.3V.
Q: Can these sensors be used underwater?
A: No, these are standard air-coupled ultrasonic sensors and are not waterproof. Using them underwater will damage the electronics.
Q: What is the minimum detection distance?
A: The minimum reliable detection distance is approximately 2 centimeters. Objects closer than this may not be detected accurately due to the ringing effect of the transducer.
Q: How many pairs can I connect to one microcontroller?
A: You can connect multiple pairs as long as you have enough GPIO pins. To avoid cross-talk, it is recommended to trigger them sequentially rather than simultaneously.
Q: Do I need separate libraries for the split version?
A: No, the electrical signaling is the same as the standard combined module. You can use the standard NewPing or similar libraries by defining separate pins for Trigger and Echo.