---
product_id: 38644312
title: "G1/2\" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor"
brand: "hiletgo"
price: "NZ$27"
currency: NZD
in_stock: true
category: "Hi Letgo"
url: https://www.desertcart.nz/products/38644312-g1-2-water-flow-hall-sensor-switch-1-30l-min
store_origin: NZ
region: New Zealand
---

# Wide 5-24V operating voltage 1-30L/min precise flow range Durable 1/2" threaded connection G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor

**Brand:** hiletgo
**Price:** NZ$27
**Availability:** ✅ In Stock

## Summary

> 💧 Flow smarter, not harder — precision sensing that keeps you ahead.

## Quick Answers

- **What is this?** G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor by hiletgo
- **How much does it cost?** NZ$27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/38644312-g1-2-water-flow-hall-sensor-switch-1-30l-min)

## Best For

- hiletgo enthusiasts

## Why This Product

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

## Key Features

- • **Low Power Efficiency:** Consumes minimal current (max 15mA), optimizing energy use without compromising sensor responsiveness.
- • **Precision Flow Control:** Accurately measures water flow from 1 to 30 liters per minute with ±2% error margin, ensuring reliable data for your smart systems.
- • **Compact & Durable Design:** Built with sturdy FR4 material and a standard 1/2" threaded interface for easy integration and long-lasting performance.
- • **Versatile Application Ready:** Ideal for water heaters, vending machines, and flow measurement devices—join the tech-savvy pros upgrading their water management.
- • **Robust Voltage Compatibility:** Operates seamlessly across a broad 5-24V DC range, perfect for diverse industrial and home automation setups.

## Overview

The HiLetgo G1/2" Water Flow Hall Sensor Switch delivers precise water flow measurement from 1 to 30L/min with a durable 1/2" threaded design. Operating efficiently within a 5-24V DC range and consuming minimal current, it’s engineered for reliable integration in water heaters, vending machines, and industrial flow monitoring, making it a must-have for professionals demanding accuracy and durability.

## Description

HiLetgo G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor Frequency: F=7.5 * Q (L / Min) error: ± 2% voltage :3.5-24VDC, current can not exceed 10mA, 450 output pulses/liters, F=onstant * units of flow (L / min) * time (seconds) Flow range:1-30L/min Working voltage range:DC 5-24 V Maximum operating current: 15 mA (DC 5V) Load capacity:≤10 mA(DC 5V) Operating Temp:≤80℃ Pperating humidity range: 35%~90%RH Allowing pressure: pressure 1.75Mpa Storage Temperature:-25-80℃ External threads: 1/2" Application: Water heaters, credit card machines, water vending machine, flow measurement device! Package Included: 1 * 1-30L/min 1.75MPa 1/2" Hall Effect Flowmeter Control Sensor

## Features

- 1-30L/min 1.75MPa 1/2" Hall Effect Flowmeter Control Water Flow Sensor
- The lowest rated working voltage: DC4.5 5V-24V
- Maximum operating current: 15 mA (DC 5V)
- Working voltage range: DC 5~18 v
- Load capacity: 10 mA (DC 5V)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N2NJQHD |
| Best Sellers Rank | #326,036 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #35 in Flow Sensors |
| Customer Reviews | 4.0 4.0 out of 5 stars (30) |
| Date First Available | November 28, 2016 |
| Item Weight | 1.58 ounces |
| Manufacturer | HiLetgo |
| Material | FR4 |
| Package Dimensions | 3.1 x 2.6 x 1.3 inches |
| Part Number | 3-01-1257 |

## Images

![G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor - Image 1](https://m.media-amazon.com/images/I/51esSimSCmL.jpg)

## Questions & Answers

**Q: Is this npt thread type?**
A: It is a 1/2" G Thread.  See https://www.amazon.com/gp/product/B08JCLHLDK/ref=ppx_yo_dt_b_asin_title_o09_s01?ie=UTF8&psc=1 for compatible adapters to convert to 1/2" NPT

**Q: Do you have an electric diagram?**
A: Red is voltage in. Black is common and the yellow just plugs into whatever digital input you assign. There are several good tutorials on this device with Arduino.

## Frequently Bought Together

- HiLetgo G1/2" Water Flow Hall Sensor Switch 1-30L/min 1.75MPa Flow Meter Flowmeter Counter Water Flow Sensor
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-10-05*