Underwater distance sensors can accurately measure underwater distances and enable underwater obstacle avoidance, with customizable measurement ranges available. When unmanned vessels navigate in rivers, reservoirs, and oceans, they need to conduct underwater surveys.

How To Measure Water Depth?
Generally, Ultrasonic underwater distance sensors are used:
-M36 Underwater Distance Sensor
-M50 Underwater Distance Sensor
-M80 Underwater Distance Sensor.
The measurement ranges vary from 10 meters, 20 meters, 30 meters, all the way up to 200 meters, and you can choose based on your actual needs.
If you are developing unmanned vessels or encountering issues with measuring water depth, we can assist you.

M36

M50

M80
M36 Underwater Depth Sensor

Used for underwater distance measurement,underwater obstacle avoidance,tank water level detection.
- Measurement Accuracy: ±0.5% of the maximum range
- Communication: Modbus-RS485 standard protocol
- Power Supply: 10.8VDC to 26VDC
- Ambient Temperature: -20°C to 60°C
- Protection Rating: IP68
- Pressure Resistance:150m
- Probe Cable:4-core shielded cable
- Connection Method: Aviation plug or direct wiring
Application Area

Measure Height From Hull to Seabed

Underwater Robot Obstacle Avoidance

Obstacle Detection Avoidance

Underwater Robot Ranging
M50 Underwater Depth Sensor

Used for underwater distance measurement,underwater obstacle avoidance.
- Measurement Accuracy: ±0.5% of the maximum range
- Communication: Modbus-RS485 standard protocol
- Power Supply: 10.8VDC to 26VDC
- Ambient Temperature: -20°C to 60°C
- Protection Rating: IP68
- Pressure Resistance:150m
- Probe Cable:4-core shielded cable
- Connection Method: Aviation plug or direct wiring
Application Area

Nearshore Water Depth Measurement

Underwater ROV Navigation

Underwater Robot Obstacle Avoidance

Underwater Operation Robot
M80 Underwater Depth Sensor

Used for underwater distance measurement,underwater obstacle avoidance.
- Measurement Accuracy: ±0.5% of the maximum range
- Size: Φ80mm*H 70mm,with M32×30mm thread
- Communication: Modbus-RS485 standard protocol
- Power Supply: 10.8VDC to 26VDC
- Ambient Temperature: -20°C to 60°C
- Protection Rating: IP68
- Pressure Resistance:150m
- Probe Cable:4-core shielded cable
- Connection Method: Aviation plug or direct wiring
Application Area

Obstacle Avoidance in Underwater Operations

Underwater Terrain Obstacle Avoidance

Underwater Distance Measurement

Robots Obstacle Avoidance