Ultrasonic distance sensor AJ-SR04M / JSN-SR04T (depending on availability), waterproof (no underwater sensor / sonar)
- Measuring accuracy of up to 2mm
- Waterproof
- 3.0V - 5.5V supply voltage
Easily programmable in the Arduino development environment.
Same control as the HC-SR04 ultrasonic sensor.
Quiescent current: 5mA
Operating current: 30mA
Sound emission frequency: 40 kHz
Range: approx. 5m
Minimum distance: approx. 20cm