# G 1/2" Water Flow Sensor (Seeed Studio)

**Type:** Product page · **SKU:** SS314150005 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/g1-2-water-flow-sensor-seeed-studio.html ([markdown](https://core-electronics.com.au/g1-2-water-flow-sensor-seeed-studio.html.md))

Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed...

## Pricing

- **Price:** $22.70 (inc GST) — $20.64 AUD, exc GST
- **Quantity discounts:** 10+ $19.81 (exc GST) · 25+ $19.19 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 20 and Aug 24.

## Description

Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signal. This one is suitable to detect flow in water dispenser or coffee machine. We have a comprehensive line of water flow sensors in different diameters. Check them out to find the one that meets your need most.

**Features**

- Compact, Easy to Install
- High Sealing Performance
- High Quality Hall Effect Sensor
- RoHS Compliant

**Specifications**

- Mini. Wokring Voltage: DC 4.5V
- Max. Working Current: 15mA (DC 5V)
- Working Voltage: DC 5V~24V
- Flow Rate Range: 1~30L/min
- Load Capacity: ≤10mA (DC 5V)
- Operating Temperature: ≤80°C
- Liquid Temperature: ≤120°C
- Operating Humidity: 35%~90%RH
- Water Pressure: ≤1.75MPa
- Storage Temperature: -25 ~ +80°C
- Storage Humidity: 25%~95%RH

**Documents**

- Mechanic Dimensions(Coming soon)
- [British Standard Pipe (BSP)](https://en.wikipedia.org/wiki/British_standard_pipe_thread)
- [Water Flow rate display on LCD](https://github.com/practicalarduino/WaterFlowGauge)
- How Magnetic Reed Liquid Level Sensors Work
- [Reading Water Flow rate with Water Flow Sensor](https://www.seeedstudio.com/forum/viewtopic.php?f=4&t=989&p=3632)

| Type | Dimensions(DN) | Working Voltage | Flow Rate Range | Length | Male & Female | Length of Thread | Material |
|---|---|---|---|---|---|---|---|
| [YF-B1](https://www.seeedstudio.com/Water-Flow-Sensor-YF-B1-p-2878.html) | DN15 | 5V~15V(DC) | 1~25L/min | 44mm | Double Male | 10mm | Copper |
| [YF-B2](https://www.seeedstudio.com/Water-Flow-Sensor-YF-B2-p-2879.html) | DN15 | 5V~15V(DC) | 1~25L/min | 50mm | Male in Female out | 10mm | Copper |
| [YF-B3](https://www.seeedstudio.com/Water-Flow-Sensor-YF-B3-p-2880.html) | DN15 | 5V~15V(DC) | 1~25L/min | 66mm | Double Male | 18mm | Copper |
| [YF-B4](https://www.seeedstudio.com/Water-Flow-Sensor-YF-B4-p-2881.html) | DN15 | 5V~15V(DC) | 1~25L/min | 66mm | Male in Female out | 10mm | Copper |
| [YF-B5](https://www.seeedstudio.com/Water-Flow-Sensor-YF-B5-p-2882.html) | DN20 | 5V~15V(DC) | 1~30L/min | 50mm | Double Male | 10mm | Copper |
| [YF-B6](https://www.seeedstudio.com/Water-Flow-Sensor-YF-B6-p-2883.html) | DN20 | 5V~15V(DC) | 1~30L/min | 60mm | Double Male | 11mm | Copper |
| [YF-B7](https://www.seeedstudio.com/Water-Flow-Sensor-YF-B7-p-2884.html) | DN15 | 5V~15V(DC) | 1~25L/min | 66mm | Double Male | 10mm | Copper |
| [G1&2](https://www.seeedstudio.com/G1-2-Water-Flow-Sensor-Enclosure-p-1915.html) | DN15 | 5V~24V(DC) | 1~30L/min |  | Double Male |  | Plastic |
| [G3&4](https://www.seeedstudio.com/G3-4-Water-Flow-Sensor-p-1083.html) | DN20 | 5V~24V(DC) | 1~60L/min |  | Double Male |  | Plastic |
| [G1&2](https://www.seeedstudio.com/G1-2-Water-Flow-Sensor-p-635.html) | DN15 | 5V~24V(DC) | 1~30L/min | 60mm | Double Male | 13mm | Plastic |
| [G1&8](https://www.seeedstudio.com/G1-8-Water-Flow-Sensor-p-1346.html) | - | 5V~24V(DC) | 0.3~6L/min | - | - | - | Plastic |
| [M11\*1.25](https://www.seeedstudio.com/M11-1-25-Water-Flow-Sensor-p-1345.html) | - | 5V~24V(DC) | 0.3~6L/min | - | - | - | Plastic |

#### Documentations

**Resource**

- [Water flow sensor datasheet.pdf](https://core-electronics.com.au/attachments/localcontent/Water_flow_sensor_datasheet_511544c4b44.pdf)
- [Reading Water Flow rate with Water Flow Sensor](https://community.seeedstudio.com/topic_detail.html?id=575#p3632)
- [Water Flow rate display on LCD](https://github.com/practicalarduino/WaterFlowGauge)
- datasheet for the material
- [CE,RoHS Certification.zip](https://core-electronics.com.au/attachments/localcontent/CE,RoHSCertification_38145b0e28f.zip)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/g/1/g12_20water_20flow_20sensor.jpg)