# Grove - Hall Sensor (Seeed Studio)

**Type:** Product page · **SKU:** SS101020046 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/grove-hall-sensor-seeed-studio.html ([markdown](https://core-electronics.com.au/grove-hall-sensor-seeed-studio.html.md))

The Hall Sensor measures the Hall Effect, which is a production of a voltage difference across an electrical conductor, transverse to an electric current...

## Pricing

- **Price:** $5.20 (inc GST) — $4.73 AUD, exc GST
- **Quantity discounts:** 10+ $4.54 (exc GST) · 25+ $4.40 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 07 and Sep 09.

## Description

Grove - Hall Sensor is based on the A1101 Hall-effect magnetic switch. Hall sensors are capable of measuring a wide range of magnetic fields and are sensitive to both the magnitude and orientation of the field. When used as electronic switches, they are less prone to mechanical failure.

**Features**

- **Outstanding endurancee:** Non-contact, wear-free operation, low maintenance, and immunity to vibration, dust, and water, so no need to worry about mechanical failures.
- **Rapid response:** Based on the A1101 Hall-effect magnetic switch, only 400ns transition period for rise and fall.
- **Excellent reliability:** Stable operation even in extremely cold(-40?) or hot conditions.(+85?)
- **Grove unified socket:** The sensor ensures "Plug and Play" and could be versatile for various applications.
 
Hall effect sensor is acknowledged as the world's top 3 sensor products that are widely used in industry, automobile industry, computers, mobile phones, and emerging consumer electronics. They are also a popular sensor choice for electronics designers because of their non-contact, wear-free operation, low maintenance, and immunity to vibration, dust, and water.

Have you ever wondered why the phone screen automatically lights up or turns off when you flip open or close your cover? It is because the magnet on the cover causes a physical output of a change in the magnetic field across the crystal and the hall sensor present inside your phone senses it!

The Hall sensor is based on the Hall Effect, which is the production of a voltage difference across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current.

This product is based on the A1101 Hall-effect magnetic switch that can work sustainably. The output of these devices switches low (turns on) when a magnetic field (south polarity) perpendicular to the Hall sensor exceeds the operate point threshold BOP, and it switches high (turn off) when the magnetic field disappears. The twig can be used to measure RPM. Hall sensors are capable of measuring a wide range of magnetic fields and are sensitive to both the magnitude and orientation of the field. When used as electronic switches, they are less prone to mechanical failure, since there is no wear on physical parts. They can also be operated at higher frequencies than mechanical switches.

We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. Click to explore the [Grove Sensor family](https://wiki.seeedstudio.com/Sensor/) and get started to Grove your Idea. For all Grove users (especially beginners), we provide you with guidance PDF documents. Please download and read through [Preface - Getting Started](https://core-electronics.com.au/attachments/localcontent/Preface_164458957de.pdf) and [Introduction to Grove](https://core-electronics.com.au/attachments/localcontent/IntroductiontoGrove_50139924b1c.pdf) before your use of the product.

**Application**

- Pneumatic cylinder
- Computer printer
- Automotive systems that sense position, distance, and speed
- Direct-current (DC) transformers
- Automotive fuel-level indicator
- Keyboard switch
 
**Specifications**

 | Dimensions | 130mm x90mm x9.5mm |
|---|---|
| Weight | G.W 9g |
| Battery | Exclude |
| Supply Voltage | 3.8-24V |
| Supply Current | 4.1-24mA |
| Operating Temperature | -40 to 85ºC |

**Part List**

 | Grove - Hall Sensor | 1 |
|---|---|

Documents

- [Grove-Hall Sensor Schematic](https://raw.githubusercontent.com/SeeedDocument/Grove-Hall_Sensor/master/res/Twig_Hall_Sensor_v0.9b.zip)
- [Hall Sensor Demo Code](https://raw.githubusercontent.com/SeeedDocument/Grove-Hall_Sensor/master/res/Grove-Hall_Sensor_Demo_Code.zip)
- [A1101 datasheet](https://files.seeedstudio.com/wiki/Grove-Hall_Sensor/res/SMD_Magnetic_Sensor.pdf)
- [CDC File](https://raw.githubusercontent.com/SeeedDocument/Grove-Hall_Sensor/master/res/Grove_Hall_Sensor_CDC_File.zip)
 
ECCN/HTS

[![](https://media-cdn.seeedstudio.com/media/wysiwyg/certification/EUDOC.png)](https://files.seeedstudio.com/Seeed_Certificate/documents_certificate/101020046-EUDOC.pdf)[![](https://core-electronics.com.au/attachments/localcontent/ROHS_575391c82.png)](https://files.seeedstudio.com/Seeed_Certificate/documents_certificate/101020046-ROHS.pdf)[![](https://media-cdn.seeedstudio.com/media/wysiwyg/certification/UKDOC.png)](https://files.seeedstudio.com/Seeed_Certificate/documents_certificate/101020046-UKDOC.pdf)

 | HSCODE | 9031900090 |
|---|---|
| USHSCODE | 9031808085 |
| UPC | 841454108269 |
| EUHSCODE | 9013101000 |
| COO | CHINA |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/h/a/hall_20sensor.jpg)