JSN-SR04T Waterproof Ultrasonic Distance Sensor with Separate Probe
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Prices updated: 13 Oct 2026
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About this product
A waterproof ultrasonic distance sensor with a separate cable-connected probe, designed for wet or harsh environments where the electronics must stay away from the measuring head. It operates at 5 V and 40 kHz with a measuring range of 25 to 450 cm, suiting obstacle detection and reversing radar.
Specifications
- Operating voltage
- 5 V
- Sensing range
- 25–450 cm
- Frequency
- 40 kHz
- Probe
- Waterproof, separate cable-connected probe
Frequently asked questions
How do I wire it?
Connect VCC to 5 V and GND to GND, then connect the trigger and echo signal pins as labelled on the board. Confirm the pin labels on your module before wiring.
Can I use it with a 3.3 V board?
The sensor is powered at 5 V. If its echo output is at 5 V logic, use a voltage divider or level shifter before connecting it to a 3.3 V board such as an ESP32.
