---
product_id: 135643087
title: ""
brand: "gredia"
price: "A$31"
currency: AUD
in_stock: true
reviews_count: 12
category: "Gredia"
url: https://www.desertcart.com.au/products/135643087-
store_origin: AU
region: Australia
---

# 0.3-6 L/min flow range DC 5-24 V wide voltage compatibility Food-grade plastic, ROHS certified 

**Brand:** gredia
**Price:** A$31
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead with precision flow control that keeps your systems flawlessly flowing!

## Quick Answers

- **What is this?**  by gredia
- **How much does it cost?** A$31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/135643087-)

## Best For

- gredia enthusiasts

## Why This Product

- Trusted gredia brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Leak-Proof Design:** Sealing ring guarantees firm connection and zero water leakage
- • **Versatile Applications:** Ideal for coffee machines, water purifiers, beverage dispensers, and smart campus equipment
- • **Robust & Safe Materials:** Crafted from food-grade plastic meeting strict ROHS standards
- • **Universal Compatibility:** Fits hosepipes with 5-7 mm inner diameter via G1/4 inch connector
- • **Precision Flow Monitoring:** Accurate ±3% flow measurement ensures reliable liquid control

## Overview

This dual-pack G1/4 inch flowmeter offers precise liquid flow measurement from 0.3 to 6 L/min with ±3% accuracy, operating safely under DC 5-24 V and up to 0.8 Mpa water pressure. Made from food-grade, ROHS-compliant plastic, it ensures leak-proof connections and versatile use across water heaters, coffee machines, purifiers, and more—perfect for professionals demanding reliable, easy-to-install flow monitoring.

## Description

Our products are fine made with nice materials and good workmanship, strict quality control, guarantee in after service. The flowmeter is light and handy, easy to install. The sealing ring make the connection firm, the sealing performance is good and the problem of water leakage is avoided. More details about the flow meter: F=(98*Q)±3%, Q=L/Min, error: ±3% Working range: 0.3-6L/min Working voltage: DC 5-24 V Water Pressure: ≤0.8Mpa Liquid temperature: 0-100℃ Maximum current consumptiont: 10 mA(DC 5V) Size: 58mm x 34mm x 26mm(L*W*H) Wire length: 15 cm Refer to the wiring: Red wire: VCC(+) Black wire: GND(-) Yellow wire: Signal output Package: 2 x G1/4 inch flowmeter connect hosepipe

Review: Works flawlessly! - I made a project with a RPi5 to monitor my coolant for my laser cutter/etcher. I used this to make sure that I was getting flow from the coolant output of the laser to verify that there was no issues cooling the laser tube. I connect this sensor to a custom cable and 3D printed adapters for my coolant pipes. The system screen flawlessly tells me whether I have flow and how much!
Review: Good - Functions well, but does not come with technical specs.

## Features

- Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector), comes with 2 pieces
- Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
- Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
- Material: food grade plastic, all raw materials conform to the ROHS test standard
- Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07RF57QF8 |
| Best Sellers Rank | #24,594 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Flowmeters |
| Date First Available | May 2, 2019 |
| Item Weight | 2.08 ounces |
| Item model number | GR-R401P2 |
| Manufacturer | GREDIA |
| Package Dimensions | 3.46 x 3.19 x 1.22 inches |

## Images

![ - Image 1](https://m.media-amazon.com/images/I/61Uoj8NQr8L.jpg)
![ - Image 2](https://m.media-amazon.com/images/I/51DlW5Z-ryL.jpg)
![ - Image 3](https://m.media-amazon.com/images/I/51DpU6KR0tL.jpg)
![ - Image 4](https://m.media-amazon.com/images/I/61hUYJB73cL.jpg)
![ - Image 5](https://m.media-amazon.com/images/I/51ryV5Q9FdL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works flawlessly!
*by J***S on May 26, 2025*

I made a project with a RPi5 to monitor my coolant for my laser cutter/etcher. I used this to make sure that I was getting flow from the coolant output of the laser to verify that there was no issues cooling the laser tube. I connect this sensor to a custom cable and 3D printed adapters for my coolant pipes. The system screen flawlessly tells me whether I have flow and how much!

### ⭐⭐⭐⭐ Good
*by E***O on October 8, 2025*

Functions well, but does not come with technical specs.

### ⭐⭐⭐⭐⭐ Review
*by P***X on August 20, 2025*

Buena calidad

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-06*