# A02YYUW Waterproof Ultrasonic Sensor

**Type:** Product page · **SKU:** SEN0311 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/a02yyuw-waterproof-ultrasonic-sensor.html ([markdown](https://core-electronics.com.au/a02yyuw-waterproof-ultrasonic-sensor.html.md))

Ultrasonic distance sensor determines the distance to a target by measuring time lapses between the sending and receiving of the ultrasonic pulse. This is an easy-to-use...

## Pricing

- **Price:** $36.20 (inc GST) — $32.91 AUD, exc GST
- **Quantity discounts:** 6+ $31.26 (exc GST) · 12+ $29.95 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 01 and Sep 07.

## Description

Ultrasonic distance sensor determines the distance to a target by measuring time lapses between the sending and receiving of the ultrasonic pulse. This is an easy-to-use commercial-grade ultrasonic sensor module of high performance and reliability, featuring much smaller blind zone, wider sensing angle and a certain penetration power(smog, dust) compared with other similar [sensors .](https://www.dfrobot.com/category-36.html)

**![](https://core-electronics.com.au/attachments/localcontent/1_3777546835a.jpg)**

**Connection with [Arduino](https://www.dfrobot.com/category-35.html)**

The ultrasonic sensor adopts closed separated probe, waterproof and dustproof, which could be well suitable for harsh and moist measuring environment. All the signal processing units are integrated inside the [module](https://www.dfrobot.com/category-156.html), so users can directly obtain the distance value through Asynchronous Serial Interface. With 9600bit/s band rate, the sensor can easily communicate with upper-host or other MCU, which greatly shortens the developing cycle for users.

**![](https://core-electronics.com.au/attachments/localcontent/2_41815cefea6.jpg)**

**Connection with [Raspberry Pi](https://www.dfrobot.com/category-36.html)**

Use the sensor with [Arduino](https://www.dfrobot.com/category-36.html) controller to build up your projects, such as backing car annunciator, obstacle avoidance [robot,](https://www.dfrobot.com/category-37.html) object approaching detection etc.

**![](https://core-electronics.com.au/attachments/localcontent/3_79449c2327f.jpg)**

**![](https://core-electronics.com.au/attachments/localcontent/4_7719478bb77.jpg)**

**Beam Directionalities Diagram**

**![](https://core-electronics.com.au/attachments/localcontent/5_713370fdf1f.jpg)**

**Dimension Diagram**

### Specification

- Operating Voltage: 3.3~5V
- Average Current: <8mA
- Blind Zone Distance: 3cm
- Detecting Range(Flat object): 3-450cm
- Output: UART
- Response Time:100ms
- Operating Temperature: -15°C ~ 60°C
- Storage Temperature: -25°C ~ 80°C
- Reference Angle: 60º
- Waterproof Grade: IP67

### Documents

- [Product wiki](https://wiki.dfrobot.com/_A02YYUW_Waterproof_Ultrasonic_Sensor_SKU_SEN0311)

### Parts List

- A02YYUW Waterproof Ultrasonic Sensor x1
- PH2.0-4P Connector x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/e/sen0311-1.jpg)