> **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

# A01NYUB Waterproof Ultrasonic Sensor

**Type:** Product page · **SKU:** SEN0313 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/a01nyub-waterproof-ultrasonic-sensor.html ([markdown](https://core-electronics.com.au/a01nyub-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 A01NYUB Waterproof...

## Pricing

- **Price:** $58.85 (inc GST) — $53.50 AUD, exc GST
- **Quantity discounts:** 6+ $50.83 (exc GST) · 12+ $48.68 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 5 today, and up to 95 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0313:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

Ultrasonic distance sensor determines the distance to a target by measuring time lapses between the sending and receiving of the ultrasonic pulse. This A01NYUB Waterproof Ultrasonic Sensor features farther monitoring distance, wider detection range and a certain penetration power(smog, dust). The product comes with a removable bell-mouth and the effective measuring distance is 7.5m when the bell-mouth installed.

This sensor is provided with Arduino example code via the [manufacturer's product wiki](https://wiki.dfrobot.com/A01NYUB%20Waterproof%20Ultrasonic%20Sensor%20SKU_SEN0313), but we've also got it working on a [Raspberry Pi Pico with MicroPython](https://forum.core-electronics.com.au/t/a01nyub-waterproof-ultrasonic-sensor-micropython/15263/6).

![](https://core-electronics.com.au/attachments/localcontent/1_33892fcf547.jpg)

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

The ultrasonic sensor adopts closed probe of transmitter & receiver, waterproof and dustproof. 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_374761b978e.jpg)**

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

Use the sensor with Arduino 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)**

**Beam Directionalities Diagram**

**![](https://core-electronics.com.au/attachments/localcontent/4_686116208b2.jpg)**

**Dimension Diagram**

### Specification

- Operating Voltage: 3.3~5V
- Average Current: <15mA
- Blind Zone: 28cm
- Detection Range (Flat Object): 28-750cm
- Output: UART
- Response Time: 100ms
- Probe Center Frequency: 40K±1.0KHZ
- Operating Temperature: -15~60°C
- Storage Temperature: -25~80°C
- Sensing Angle: with bell-mouth: 55º
- without bell-mouth: 40º
- Waterproof Grade: IP67
- Resolution: 1mm
- Accuracy: ±1cm
 
### Documents

- [Product wiki](https://wiki.dfrobot.com/A01NYUB%20Waterproof%20Ultrasonic%20Sensor%20SKU_SEN0313)
 
### Shipping List

- A01NYUB Waterproof Ultrasonic Sensor x1
- PH2.0-4P Connector x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/e/sen0313-1.jpg)