Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Brand	Youxin Electronics
Model Number	JSN-SR04T
Operating Voltage	DC 5V
Detection Range	2cm to 450cm
Beam Angle	15 degrees
Interface Type	UART / TTL
Waterproof Rating	IP67
Operating Temperature	-20°C to +70°C
Dimensions	23mm x 45mm x 12mm
Application	Reverse Parking, Obstacle Avoidance, Liquid Level Detection

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Good value, easy to integrate

Integration was straightforward using the UART interface. It's slightly larger than the standard HC-SR04 but the build quality justifies the size. Works well in outdoor conditions.

Anonymous

Mar 28, 2026

Rating: 4/5

Solid performance

Great sensor for the price. The only minor downside is that the cable could be a bit longer for some automotive applications, but an extension solves that easily.

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect for my Arduino parking project

This sensor works flawlessly with my microcontroller setup. The waterproof casing is a huge plus since I mounted it on the back of my RC car. Distance readings are consistent and stable.

Anonymous

Mar 16, 2026

Rating: 5/5

Exceeded expectations

I was worried about false positives, but the JSN-SR04T filters noise very well. It ignores small obstacles effectively while detecting walls and cars reliably.

Anonymous

Mar 14, 2026

Rating: 5/5

Reliable obstacle avoidance

We used ten of these modules for our university robotics competition. They handled dust and minor water splashes without any issues. Highly recommended for educational projects.

Anonymous

Mar 02, 2026

Rating: 5/5

Accurate reverse radar

Built a custom reverse parking aid for my old sedan. This module provides accurate distance data up to 4 meters. The signal is clean and doesn't jitter like cheaper alternatives.

5 FAQ

Q: How do I calibrate the sensor for temperature changes?

A: The speed of sound varies with temperature. For high precision, you should read the ambient temperature using a separate sensor (like DHT11) and adjust the calculation formula in your code accordingly. The module itself does not have a built-in temperature compensator.

Q: What is the minimum detection distance?

A: The minimum reliable detection distance is approximately 2cm. Objects closer than this may not be detected accurately due to the ringing effect of the ultrasonic transducer.

Q: Does it come with mounting brackets?

A: No, the package includes only the sensor module and the connecting cable. Mounting brackets or adhesive pads need to be purchased separately based on your specific installation needs.

Q: Can this be submerged in water?

A: The module has an IP67 rating, meaning it can withstand temporary immersion in water up to 1 meter for 30 minutes. It is designed for rain and splashes, but prolonged submersion is not recommended for long-term durability.

Q: Is this compatible with Raspberry Pi GPIO?

A: Yes, it is compatible. However, since it uses a UART interface, you will need to connect the TX/RX pins correctly and may require a logic level converter if your Pi operates at 3.3V strictly, though many users report success directly due to tolerance.

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