---
product_id: 135643087
title: "GREDIA 1/4\" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min (Pack of 2）"
brand: "gredia"
price: "23904CFA"
currency: XOF
in_stock: true
reviews_count: 12
category: "Gredia"
url: https://www.desertcart.sn/products/135643087-gredia-1-4-water-flow-sensor-food-grade-switch-hall
store_origin: SN
region: Senegal
---

# 0.3-6L/min flow range DC 5-24V wide voltage compatibility Food-grade, ROHS-certified materials GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min (Pack of 2）

**Brand:** gredia
**Price:** 23904CFA
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead with flawless flow sensing – because every drop counts!

## Quick Answers

- **What is this?** GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min (Pack of 2） by gredia
- **How much does it cost?** 23904CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/135643087-gredia-1-4-water-flow-sensor-food-grade-switch-hall)

## 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

- • **Versatile Applications:** Ideal for coffee machines, water purifiers, beverage dispensers, and smart campus devices
- • **Robust & Safe Materials:** Crafted from food-grade plastic, fully ROHS compliant for peace of mind
- • **Universal Compatibility:** G1/4 inch connector fits hosepipes with 5-7mm inner diameter seamlessly
- • **Plug & Play Installation:** Lightweight design with secure sealing ring prevents leaks effortlessly
- • **Precision Flow Monitoring:** ±3% accuracy ensures reliable liquid measurement every time

## Overview

The GREDIA 1/4" Water Flow Sensor is a dual-pack, food-grade flowmeter designed for precise liquid measurement between 0.3 to 6 liters per minute. Featuring a G1/4 inch connector compatible with 5-7mm hosepipes, it operates reliably within DC 5-24V and up to 0.8Mpa water pressure. Its ±3% accuracy, leak-proof sealing, and ROHS-certified materials make it perfect for professional-grade applications like coffee machines, water purifiers, and smart campus equipment.

## 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 | #34,257 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 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

![GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min (Pack of 2） - Image 1](https://m.media-amazon.com/images/I/31319TSXi2L.jpg)
![GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min (Pack of 2） - Image 2](https://m.media-amazon.com/images/I/31mzOqnNRVL.jpg)
![GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min (Pack of 2） - Image 3](https://m.media-amazon.com/images/I/31qebPhvlsL.jpg)
![GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min (Pack of 2） - Image 4](https://m.media-amazon.com/images/I/31yKevuDCoL.jpg)
![GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min (Pack of 2） - Image 5](https://m.media-amazon.com/images/I/41Lb4QS+kHL.jpg)

## 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 Senegal*
*Store origin: SN*
*Last updated: 2026-01-23*