---
product_id: 554677490
title: "3/4\" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min"
brand: "gredia"
price: "€ 71.47"
currency: EUR
in_stock: true
reviews_count: 5
category: "Gredia"
url: https://www.desertcart.de/products/554677490-3-4-water-flow-sensor-food-grade-switch-hall-effect
store_origin: DE
region: Germany
---

# DC 5-24V wide voltage 1-60L/min flow range G3/4" male thread fit 3/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min

**Brand:** gredia
**Price:** € 71.47
**Availability:** ✅ In Stock

## Summary

> 💧 Flow with confidence — measure every drop like a pro!

## Quick Answers

- **What is this?** 3/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min by gredia
- **How much does it cost?** € 71.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/554677490-3-4-water-flow-sensor-food-grade-switch-hall-effect)

## 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
- • **Precision Flow Control:** Accurate ±2% measurement for reliable fluid monitoring
- • **Robust Food-Grade Build:** Durable, ROHS-certified plastic ensures safe contact with consumables
- • **Universal Compatibility:** Standard G3/4" male thread fits most water systems seamlessly
- • **Low Power & Easy Integration:** Operates from 5V to 24V with minimal current draw, perfect for IoT projects

## Overview

The 3/4" Water Flow Sensor is a food-grade, hall effect flowmeter designed for precise liquid measurement between 1 to 60 liters per minute. Featuring a durable, ROHS-compliant plastic body and a universal G3/4" male thread, it supports a wide voltage range (DC 5-24V) and operates with ±2% accuracy. Ideal for smart water heaters, coffee machines, purifiers, and DIY IoT projects, it ensures leak-proof installation and low power consumption for seamless integration.

## 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=(5.5*Q)±2%, Q=L/Min, error: ±2% Working range: 1-60L/min Working voltage: DC 5-24 V Water Pressure: ≤1.2Mpa Liquid temperature: 0-100℃ Maximum current consumption: 15 mA(DC 5V) Wire length: 15 cm Size: 66mm x 38mm(L*W) Refer to the wiring: Red wire: VCC(+) Black wire: GND(-) Yellow wire: Signal output Package: 1 x G3/4 inch flowmeter

Review: Seals fine on NPT threads with plenty of teflon tape, at least below 100 psi. If you're operating above that, don't buy desertcart grade sensors. It works down to 3.3v so you can hook it directly to a modern microcontroller such as the ESP32. Calibrate it yourself, though, if you want accuracy.
Review: Perfect for my DIY water usage monitoring system. Accurate readings, durable build, and easy integration with my Arduino project. Threads were clean and fit standard fittings with no leaks. Will be ordering more

## Features

- Connect to G3/4 inch male thread, hall effect
- Flow range:1-60L/min, Water Pressure: ≤1.2Mpa
- Working voltage: DC 5-24 V, F=(5.5*Q)±2%, 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 | B07MY6LFPH |
| ASIN  | B07MY6LFPH |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (38) |
| Customer reviews | 4.3 4.3 out of 5 stars (38) |
| Date First Available | 1 September 2019 |
| Date First Available  | 1 September 2019 |
| Is Discontinued By Manufacturer  | No |
| Item Weight | 60 g |
| Item model number | GR-S403 |
| Item model number  | GR-S403 |
| Manufacturer | GREDIA |
| Manufacturer  | GREDIA |
| Material | Plastic |
| Package Dimensions | 12.9 x 11.3 x 4.1 cm; 60 g |
| Package Dimensions  | 12.9 x 11.3 x 4.1 cm; 60 g |
| Part number | GR-S403 |
| Size | G3/4" male thread |

## Images

![3/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 1](https://m.media-amazon.com/images/I/6119f+Cq5cL.jpg)
![3/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 2](https://m.media-amazon.com/images/I/61mXD2gAagL.jpg)
![3/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 3](https://m.media-amazon.com/images/I/61rUr0C0tSL.jpg)
![3/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 4](https://m.media-amazon.com/images/I/71aE43DGRuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by A***E on 17 March 2023*

Seals fine on NPT threads with plenty of teflon tape, at least below 100 psi. If you're operating above that, don't buy Amazon grade sensors. It works down to 3.3v so you can hook it directly to a modern microcontroller such as the ESP32. Calibrate it yourself, though, if you want accuracy.

### ⭐⭐⭐⭐⭐ Review
*by D***N on 26 May 2025*

Perfect for my DIY water usage monitoring system. Accurate readings, durable build, and easy integration with my Arduino project. Threads were clean and fit standard fittings with no leaks. Will be ordering more

### ⭐ Review
*by M***K on 7 June 2022*

This flow sensor is very noisy and not accurate above 37l/ minute (10 Gallons/minute). It is 30% off, not really useful. I tried two, they were the same. The noise caused by the sensor impeller at medium to high flow is also very annoying because it is heard through the whole house as it is carried by the piping. Make sure you know what is the flow rate you are going to measure. If it is bellow 7 Gallons/minute you can give it a try. For higher flow rate look elsewhere.

## Frequently Bought Together

- GREDIA 3/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min
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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-03*