# RS485 750cm Ultrasonic Level Sensor

**Type:** Product page · **SKU:** SS101991041 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/rs485-750cm-ultrasonic-level-sensor.html ([markdown](https://core-electronics.com.au/rs485-750cm-ultrasonic-level-sensor.html.md))

High-precision ultrasonic distance sensor with measuring range of 28~750cm. Suitable for various applications like Sewer, water level monitoring,...

## Pricing

- **Price:** $40.50 (inc GST) — $36.82 AUD, exc GST
- **Quantity discounts:** 10+ $35.35 (exc GST) · 25+ $34.24 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 1 today, and up to 50 more in 8–10 days.

## Description

RS485 750cm Ultrasonic Level Sensor uses ultrasonic sensing technology for distance measurement. Equipped with bell-mouth, the detection range can be up to 750 cm, and the resolution can reach 1mm. With an IP67 waterproof ultrasonic transducer, it has strong adaptability to the working environment.

![](https://core-electronics.com.au/attachments/localcontent/image_6_418361a37ff.png)

****Features****

- **Measuring ranges:** With an intelligent signal processing circuit, and equipped with a bell-mouth, the measurement distance can be up to 750cm, and the blind zone is less than 28cm.
- **High precision:** Built-in high-precision ranging algorithm, measurement accuracy ±(1+S\*0.3%)
- **Strong robustness:** IP67 protection, suitable for wet, harsh environments
- **Low power consumption:** Average current <10 mA
- Built-in on-board temperature compensation, automatic correction of temperature deviation
 
****Description****

It's a high-precision, low-power ultrasonic distance measuring sensor that provides a range of up to 750cm and a resolution of 1mm, equipped with a special bell mouth suitable for large-scale measurement, making your monitoring system more accurate and reliable. With a waterproof ultrasonic transducer, which is highly suitable for various harsh environments.

This Ultrasonic Level Sensor comes with RS485 serial communications protocol. It can be easily connected and integrated with other devices, It's compatible with[SenseCAP LoRaWAN® Data Logger](https://www.seeedstudio.com/SenseCAP-S2100-LoRaWAN-Data-Logger-p-5361.html) to connect with the LoRaWAN® network, enjoying the benefits of low-power and long-range communication.

![](https://core-electronics.com.au/attachments/localcontent/1_20_81500eeb84c.png)

****Specifications****

 | Accuracy | ±(1+S\*0.3%) |
|---|---|
| Resolution | 1 mm |
| Blind zone distance | 0~28 cm |
| Measurement range (w/o bell-mouth) | 28 ~ 450 cm |
| Measurement range (with bell-mouth) | 28 ~ 750 cm |
| Beam angle(w/o bell-mouth) | \-- |
| Beam angle(with bell-mouth) | ˜40° |

****General Parameter****

 | Operating voltage | 5~12 V |
|---|---|
| Average current | <10 mA |
| Output method | RS485 Output |
| IP Rating | IP 67 |
| Working Temperature | -15°C ~ 60°C |

****Interface****

 | PIN # | Color | PIN name | Description |
|---|---|---|---|
| 1 | Red | VCC | 5V~12V power input |
| 2 | Black | GND | Ground |
| 3 | Yellow | B | RS485 B |
| 4 | White | A | RS485 A |

![](https://core-electronics.com.au/attachments/localcontent/2_15_486133c9f7.png)

****Dimension****

![](https://core-electronics.com.au/attachments/localcontent/image1_96107aa1b81.png)

****Application****

- Horizontal ranging
- Object proximity and presence awareness
- Intelligent trash can management system
- Robot avoidance and automatic control
- Sewer, bottom water level monitoring
 
![](https://core-electronics.com.au/attachments/localcontent/image2_60010d5d0ad.png)

#### Documentations

[RS485 750cm Ultrasonic Level Sensor Datasheet](https://core-electronics.com.au/attachments/localcontent/RS485-750cm-Ultrasonic-Level-Sensor_9583269e7ee.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/S/SS101991041-1.jpg)