> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# IP68 Underwater Ultrasonic Obstacle Avoidance Sensor (3m, UART)

**Type:** Product page · **SKU:** SEN0598 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/ip68-underwater-ultrasonic-obstacle-avoidance-sensor-3m-uart.html ([markdown](https://core-electronics.com.au/ip68-underwater-ultrasonic-obstacle-avoidance-sensor-3m-uart.html.md))

The IP68 underwater ultrasonic obstacle avoidance sensor specifically designed for underwater applications. It operates on a wide voltage range of 5-24V...

## Pricing

- **Price:** $54.80 (inc GST) — $49.82 AUD, exc GST
- **Quantity discounts:** 6+ $47.33 (exc GST) · 12+ $45.34 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 19 and Aug 24.

## How to buy

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## Description

This is an underwater ultrasonic obstacle avoidance sensor specifically designed for underwater applications. It operates on a wide voltage range of 5-24V and features compact size, minimal blind spots, high precision, and high protection. Its underwater measurement range is from 2-300cm.

![](https://core-electronics.com.au/attachments/localcontent/3_185070327b9.png)

With an IP68 protection rating, this sensor can replace a camera for obstacle avoidance and meet the requirements of normal underwater navigation speeds. By using this obstacle avoidance sensor, underwater vehicles can achieve true "unmanned driving" without the need for human observation. Even at a depth of 10m, obstacle avoidance can still be easily accomplished.

![Waterproof level of IP68](https://core-electronics.com.au/attachments/localcontent/4_154679f243f.png)

Thanks to its small size and minimal blind spots, this sensor takes up minimal space and can be easily integrated into various projects.

![Compact in size, with a small blind zone](https://core-electronics.com.au/attachments/localcontent/6_11805b88bf9.png)

**Note:** The sensor can **only be used underwater** as it requires the presence of water to provide accurate data.

### Features

- Compact in size, with a small blind zone
- Lightweight and fast response time
- Waterproof level of IP68
 
### Applications

- Underwater robot obstacle avoidance and self-control detection
- Measurement of water depth by underwater robots
 
![Applications Measurement of water depth](https://core-electronics.com.au/attachments/localcontent/5_863232c24fc.png)

### Specifications

- Measurement Range: 2-300cm
- Measurement Accuracy: ±(0.5+S\*0.5%)cm@<2m, ±(1+S\*1%)cm@>2m
- Operating Voltage: 5-24V
- Standby Current: =1mA
- Operating Current: =10mA
- Output Mode: UART controlled
- Power-on Startup Time: =500ms
- Output Response Time: 10ms
- Angle: 5-10°
- Operating Temperature: -15~50°C
- Storage Temperature: -25~80°C
- Storage Humidity: 65%~90% RH (non-condensing)
 
### Documents

- [Product wiki](https://wiki.dfrobot.com/Underwater_Ultrasonic_Obstacle_Avoidance_Sensor_3m_SKU_SEN0598)
 
### Parts List

- Underwater Ultrasonic Obstacle Avoidance Sensor (3m) x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0598-1.jpg)