Waterproof Ultrasonic Sensor - JSN-SR04T

With this water-resistant ultrasonic sensor you can easily measure a distance in a moist environment. It works just like an HC-SR04. The sensor with wire is water resistant.

To use this sensor with Arduino see this page: How to Use an HC-SR04 Ultrasonic Sensor With Arduino

Note: The JSN-SR04T is less stable compared to the HC-SR04. The sensor has more problems measuring small/moving objects and can therefore give deviating values. This module has only one sensor that works as a sender and receiver and has a bigger angle in which it operates. On the other hand, the sensor (not the PCB!) is moisture-resistant and splash-proof.

Specifications:

• Detection range: 20-450 cm
• Voltage: 3.0-5.5V 
• Current: <8mA
• Resolution: 1mm
• Accuracy:  ± 10mm
• Sensor angle: <75^o
• Dimensions: 42mm x 29mm x 12mm
• Cable length: ~250 cm

Note: PCB is not water resistant!