# Gravity: Liquid Flow Sensor (G1/4)

**Type:** Product page · **SKU:** SEN0549 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-liquid-flow-sensor-g14.html ([markdown](https://core-electronics.com.au/gravity-liquid-flow-sensor-g14.html.md))

This Gravity: electromagnetic-based liquid flow sensor can measure the flow of various liquids like water, diesel, engine oil, milk, paint, detergent and...

## Pricing

- **Price:** $33.50 (inc GST) — $30.45 AUD, exc GST
- **Quantity discounts:** 6+ $28.93 (exc GST) · 12+ $27.71 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 24 and Aug 28.

## Description

This Gravity: liquid flow sensor is designed based on the electromagnetic principle. It adopts an O-ring rubber seal and uses silicone sealant at the outlet end to strength water-resistance. With high anti-interference and anti-impact, the sensor offers reliable performance and long service life. Also, it is designed with G1/4 thread connectors for easy installation.

The sensor can be used with microcontrollers like [Arduino UNO](https://www.dfrobot.com/product-610.html) to measure the flow of liquids with high concentration and low viscosity like water, diesel, engine oil, milk, paint, detergent, honey, etc. (no impurity in liquid)

![Gravity: Water Flow Sensor (G1/4)](https://core-electronics.com.au/attachments/localcontent/1_50520edea5b.jpg)

### Features

- Gravity connector, easy to wire
- Wide voltage of 3.5-24V
- Supports measuring liquid with high concentration and low-viscosity
- RHOS compliant
 
### Applications

- Measure the flow of liquids with high concentration and low viscosity
 
### Specification

- Operating Voltage: DC3.5-24V
- Operating Current: =10mA(DC5V)
- Output: NPN Pulse signal
- Pipe Diameter: G1/4
- Thread Outer Diameter: 13mm
- Thread Length: 10mm
- Water Pressure Resistance: =1.0MPA
- Insulation Resistance: >100MO
- Error: ±1%(0.3-5L/min)
- Output Pulse High Level: >DC4.7V(Input voltage DC5V)
- Output Pulse Low Level: <DC0.5V(Input voltage DC5V)
- Output Pulse Duty Ratio: 50%±10%
- Flow-Pulse Correlation: 1L=540 pulses
- Operating Temperature Range: -10°~70°C
- Operating Humidity Range: 35%~90%RH(No condensing)
- Storage Temperature: -25°~+80°C
- Storage Humidity: 25%~95%RH
- Dimension: 80\*47\*30mm/3.15\*1.85\*1.18”
 
### Documents

- [Product wiki](https://wiki.dfrobot.com/SKU_SEN0549_Gravity_Water_Flow_Sensor_G1_4)
 
### Parts List

- Gravity: Liquid Flow Sensor (G1/4) x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0549-1.jpg)