---
product_id: 512389129
title: "SHOKITECH 1/8 inch Water Flow Sensor – YF-S401"
brand: "shokitech"
price: "HK$5"
currency: HKD
in_stock: false
url: https://www.desertcart.hk/products/512389129-shokitech-1-8-inch-water-flow-sensor-yf-s401
store_origin: HK
region: Hong Kong
---

# 15mA ultra-low power draw 0.3~6L/min precise flow range 6mm external diameter connection SHOKITECH 1/8 inch Water Flow Sensor – YF-S401

**Brand:** shokitech
**Price:** HK$5
**Availability:** ❌ Out of Stock

## Summary

> 💧 Stay ahead with precision flow sensing that powers your smart projects!

## Quick Answers

- **What is this?** SHOKITECH 1/8 inch Water Flow Sensor – YF-S401 by shokitech
- **How much does it cost?** HK$5 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/512389129-shokitech-1-8-inch-water-flow-sensor-yf-s401)

## Best For

- shokitech enthusiasts

## Why This Product

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

## Key Features

- • **Energy Efficient:** Consumes just 15mA at 5V DC for sustainable operation
- • **Lightweight & Durable:** Weighs only 25g, built for reliable long-term use
- • **Effortless Integration:** Compact 1/8 inch size fits seamlessly into your projects
- • **Universal Compatibility:** Standard 6mm external diameter connection for easy setup
- • **Precision Flow Monitoring:** Accurately measures water flow from 0.3 to 6 liters per minute

## Overview

The SHOKITECH 1/8 inch Water Flow Sensor (YF-S401) offers precise water flow measurement between 0.3 and 6 liters per minute, operating efficiently at just 15mA current on 5V DC. Its compact 6mm external diameter connection and lightweight 25g design make it ideal for seamless integration into professional and DIY water monitoring systems.

## Description

1/8 inch Water flow sensor YF-S401 consists of a plastic valve body, a water rotor, and a hall effect sensor – when water flows through, the internal rotator will change its speed with different rate of flow and hall effect sensor outputs the corresponding pulse signal. Use with laser cutters or CNC to measure if and how much water is flowing through laser tube or CNC spindle for cooling.

## Features

- Maximum Working Current: 15mA @ 5V DC
- Flow Rate Range: 0.3~6L/min
- Connection: 6mm (external diameter)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SHOKITECH |
| Manufacturer | Shokitech |
| Number of Memory Sticks | 1 |
| Item Weight | 25 g |
| Item Weight | 25 g |
| Item part number | SHOKITECH-RE-P-0025 |

## Images

![SHOKITECH 1/8 inch Water Flow Sensor – YF-S401 - Image 1](https://m.media-amazon.com/images/I/21mdiwa2iwL.jpg)

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**Shop now:** [https://www.desertcart.hk/products/512389129-shokitech-1-8-inch-water-flow-sensor-yf-s401](https://www.desertcart.hk/products/512389129-shokitech-1-8-inch-water-flow-sensor-yf-s401)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-27*