> **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

# Small-Angle Ultrasonic Ranging Sensor for Water Level Detection (25-800cm, IP67, 15°FOV)

**Type:** Product page · **SKU:** SEN0627 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/small-angle-ultrasonic-ranging-sensor-for-water-level-detection-25-800cm-ip67-15fov.html ([markdown](https://core-electronics.com.au/small-angle-ultrasonic-ranging-sensor-for-water-level-detection-25-800cm-ip67-15fov.html.md))

The Small-Angle Ultrasonic Ranging Sensor designed for accurate water level detection in smart manholes, reservoirs, and rivers. Featuring a 25-800 cm...

## Pricing

- **Price:** $259.95 (inc GST) — $236.32 AUD, exc GST
- **Quantity discounts:** 6+ $224.50 (exc GST) · 12+ $215.05 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 18 and Aug 24.

## How to buy

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- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The small-angle ultrasonic ranging sensor is a high-performance device that uses intelligent signal processing circuits and built-in high-precision algorithms to measure **distances ranging from 25 to 800 cm**. Featuring a small blind spot of 25 cm, a **15° field of view (FOV), high precision (±2 cm accuracy, 1 cm resolution), fast response (0.9 to 2.5 seconds)**, low power consumption (<10µA quiescent current, <15mA working current), and an **IP67 protection level**, this sensor is designed for various applications in challenging environments. It operates reliably within a temperature range of -15°C to 60°C, thanks to its onboard temperature compensation function. This sensor can be controlled using [Arduino development board](https://core-electronics.com.au/uno-r3.html), and by following the wiring diagram and sample code provided in the [tutorial](https://wiki.dfrobot.com/Small_Angle_Ultrasonic_Ranging_Sensor_8m_SKU_SEN0627#target_6), accurate distance measurements between the sensor and obstacles or liquids can be obtained. Ideal for **smart manhole cover water level detection, reservoir water tank liquid level detection, and river water level detection**.

**Small Blind Area**

With a minimum measurement distance of 25 cm, the sensor has an exceptionally small blind spot, allowing it to detect objects at very close range accurately.

![small-angle ultrasonic ranging sensor small blind area](https://core-electronics.com.au/attachments/localcontent/1_8898463a6db.png)

**Narrow Beam Angle (15° FOV)**

The sensor features a 15° field of view (FOV), providing a small beam angle that is ideal for measuring obstacles in narrow and confined spaces. This narrow beam angle minimizes interference from surrounding objects, ensuring precise measurements.

![ultrasonic ranging sensor features Narrow Beam Angle](https://core-electronics.com.au/attachments/localcontent/3_288538d02f6.png)

**High Precision and Fast Response**

Equipped with high-precision algorithms and intelligent signal processing, the sensor delivers accurate measurements with a resolution of 1 cm. It also has a fast response time of 0.9 to 2.5 seconds, enabling real-time monitoring.

**Robust and Reliable**

The sensor boasts an IP67 protection level, making it dustproof and waterproof. It also includes an onboard temperature compensation function that automatically corrects temperature deviations, ensuring stable performance in temperatures ranging from -15°C to 60°C.

![ultrasonic ranging sensor IP67 protection level](https://core-electronics.com.au/attachments/localcontent/2_265838231ae.png)

### Features

- 25 cm small blind area
- 15° FOV small angle
- High precision, low power consumption, fast response
- IP67 protection level, with temperature compensation, strong anti-interference
 
### Applications

- Smart manhole cover water level detection
- Reservoir water tank liquid level detection
- River water level detection
 
### Specification

- Working voltage: DC3.3~5V
- Quiescent current: <10uA
- Working current: <15mA
- Measurement distance: 25~800cm
- Measurement accuracy: ±2cm
- Measurement resolution: 1cm
- Probe frequency: 40khz
- Output mode: UART controlled output
- Angle: 15°
- Response time: 0.9~2.5S
- Working temperature: -15~60°C (with temperature compensation)
- Storage temperature: -25~70°C
- Protection level: IP67
 
### Documents

- [Product wiki](https://wiki.dfrobot.com/Small_Angle_Ultrasonic_Ranging_Sensor_8m_SKU_SEN0627)
- [Board Overview](https://wiki.dfrobot.com/Small_Angle_Ultrasonic_Ranging_Sensor_8m_SKU_SEN0627#target_3)
- [Dimensional Drawing](https://wiki.dfrobot.com/Small_Angle_Ultrasonic_Ranging_Sensor_8m_SKU_SEN0627#target_4)
- [Arduino Tutorial](https://wiki.dfrobot.com/Small_Angle_Ultrasonic_Ranging_Sensor_8m_SKU_SEN0627#target_6)
 
### Parts List

- Small Angle Ultrasonic Ranging Sensor-8m x1
- 4Pin sensor cable x1 x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0627-1.jpg)