---
product_id: 144872177
title: "1\" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min"
brand: "gredia"
price: "$U1137"
currency: UYU
in_stock: true
reviews_count: 4
url: https://www.desertcart.uy/products/144872177-1-water-flow-sensor-food-grade-switch-hall-effect-flowmeter
store_origin: UY
region: Uruguay
---

# Material: Food-Grade Plastic Flow Rate: 1-60L/min Voltage: DC 5-24V 1" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min

**Brand:** gredia
**Price:** $U1137
**Availability:** ✅ In Stock

## Summary

> 💡 Flow with the Future: Elevate your water management game!

## Quick Answers

- **What is this?** 1" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min by gredia
- **How much does it cost?** $U1137 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/144872177-1-water-flow-sensor-food-grade-switch-hall-effect-flowmeter)

## 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

- • **Easy Installation:** Connects effortlessly to a 1 inch BSPT male thread for quick setup.
- • **Versatile Applications:** Perfect for petrochemical, residential, and agricultural use—tailored for every need.
- • **Eco-Friendly Compliance:** Crafted from food-grade materials that meet ROHS standards for peace of mind.
- • **Robust Pressure Handling:** Handles water pressure up to 1.2Mpa, built to withstand demanding environments.
- • **Precision Flow Measurement:** Experience accuracy with a flow rate of 1-60L/min, ensuring optimal performance.

## Overview

The 1" Water Flow Sensor is a high-performance Hall Effect flowmeter designed for precise fluid measurement. With a flow range of 1-60L/min and a robust pressure tolerance of ≤1.2Mpa, this food-grade plastic sensor is perfect for various applications, including petrochemical industries and irrigation systems. Operating on a voltage range of DC 5-24V, it ensures reliable performance while adhering to eco-friendly standards.

## 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: 72mm x 46mm x 42mm(L*W*H) Refer to the wiring: Red wire: VCC(+) Black wire: GND(-) Yellow wire: Signal output Package: 1 x 1 inch flowmeter

## Features

- Connect to 1 inch BSPT 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 petrochemical industry, residential area flow control, waterworks, farmland and garden irrigation, etc.

## Images

![1" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 1](https://m.media-amazon.com/images/I/61jre3AoWVL.jpg)
![1" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 2](https://m.media-amazon.com/images/I/51dKGkxT6hL.jpg)
![1" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 3](https://m.media-amazon.com/images/I/61GYyhxGWLL.jpg)
![1" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 4](https://m.media-amazon.com/images/I/61dJdCEHHiL.jpg)
![1" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min - Image 5](https://m.media-amazon.com/images/I/61jre3AoWVL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works with 3v3 on VCC.
*by J***. on May 7, 2025*

I haven't finished integration, but initial tests are very positive.I am running this meter on 3v and so far it's working great. I think there's a small paddlewheel inside that spins to count flow; I don't have measurements on precision yet, but the numbers I'm seeing show it to be quite sensitive indeed.I've connected it to a SEEED Xiao ESP32C3, and configured it with ESPHome as a pulse counter, and then integrate that pulse counter into a volume measurement. I still have some work to do on the calibration, but very pleased with this so far.I haven't compared it to others, and I think there are some improvements to be had in sturdiness (it's cheap plastic, but that's obvious from the photos), but overall I am excited to have a working meter.

### ⭐⭐⭐⭐⭐ The magic number is 897 pulses per gallon
*by H***R on August 29, 2024*

Works. Definitely seeing the +/- 5% difference in output.A few things I discovered:* The sensor needs at least 8V. I had a 9v power supply left over from some other equipment. However, a raspberry PI can only take 3.3V into its GPIO port. (and no pull-up resistor is needed) So I sent 8V into this sensor, and on the output pin I installed a 10k resistor tied to ground. This dropped the output voltage to around 3.7V.* I wanted to record data in gallons per hour. This is from my most recent calibration where I dumped water into a bucket marked off with quarters of a gallon on the side.total_gal = total_gal + 0.001115 # 897 pulses per gal = 0.001115 gal per pulse. This code runs whenever a change from high to low occurs on the output pin.flow = (count / 897.0)*3600 # pulses/897 is gal per sec. *3600 is gal per hour* the label faces down. There is a lot of play in the spindle inside. making the label face down puts the impeller more directly in line with the water flow* make sure you install it in the right direction. The arrow on the label was correct for me.* I used waterproof automotive plugs, sealed on the ends with caulk, since this thing will be outside measuring the irrigation water usage.

### ⭐⭐⭐⭐ Not perfect but for the price i have no complaints
*by A***R on December 30, 2023*

title sums it up for me, i added enough Teflon tape, screwed everything together (no leaks) and started coding.for this project i used 2 GREDIA G2 2" Water Flow Sensor/Switch Hall Effect Flowmeter Fluid Meter Counter 10-200L/min (model GR-216). my pump is rated for about 80gpm accounting for 90degree elbows and piping i was suspecting about 60gpm all said and done. After physically measuring my flow rate and modifying my initial code i ended with a flow rate of about 57.75gpm so these get a thumps up from me.here is my initial starting off point with my Rpi3/python code wise, feel free to use it (i monster-iz-ed a couple code snip-its i found online) only thing i don't 100% understand is at the very end of the code i have to multiple gpm by 2 to get close to what i physically measured. only logic i can use is maybe this/these sensors have two pulses per rotation other than that i have no idea, it's avg. rate is at about what i measured (+-1.6%) so it's good enough for what i'm using them for.## This if for 2 GREDIA G2 2" Water Flow Sensor/Switch Hall Effect Flowmeter Fluid Meter Counter 10-200L/min (model GR-216)## This code is not 100% accurate but is close enough for measuring coolant flow in a cooling system## physically measure a flow rate of about 6.44531 gpm; sensor avg. rate is 6.342 gpm a difference of about 1.6%#!/usr/bin/python3import RPi.GPIO as GPIOimport time, sysFLOW_SENSOR = 4FLOW_SENSOR2 = 17flowCalibrationFactor = 0.2# Note: F=(0.2*Q)±2% for this flow sensor, Q=L/Min, and F is pulse freq in 1/sglobal oldTimeglobal countglobal count2oldTime = 0count = 0count2 = 0GPIO.setmode(GPIO.BCM)GPIO.setup(FLOW_SENSOR, GPIO.IN, pull_up_down = GPIO.PUD_DOWN)GPIO.setup(FLOW_SENSOR2, GPIO.IN, pull_up_down = GPIO.PUD_DOWN)def main():GPIO.add_event_detect(FLOW_SENSOR, GPIO.RISING, callback=countPulse)GPIO.add_event_detect(FLOW_SENSOR2, GPIO.RISING, callback=countPulse2)while True:try:curgpm = getFlow()print("GPM: %s" % curgpm )time.sleep(1)except KeyboardInterrupt:print('\ncaught keyboard interrupt!, bye')GPIO.cleanup()sys.exit()def countPulse(channel):global countcount = count+1def countPulse2(channel):global count2count2 = count2+1def getFlow():global countglobal count2global oldTimestart_cnt = count + count2readcnt = 0while readcnt < 1000:time.sleep(0.001)readcnt += 1end_cnt = count + count2pulses = end_cnt - start_cnt# Note: F=(0.2*Q)±2% for this flow sensor, Q=L/Min, and F is pulse freq in 1/sgpm = ((1000.0 / (round(time.time() * 1000, 5) - oldTime)) * pulses) / flowCalibrationFactor*0.26417287472922#gph = ((1000.0 / (round(time.time() * 1000, 5) - oldTime)) * pulses) / flowCalibrationFactor*15.8503pulses = 0oldTime = round(time.time() * 1000, 5)return round(gpm, 3)*2if __name__ == "__main__":main()

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-22*