---
product_id: 256334291
title: "HiLetgo 5pcs LM393 Soil Moisture Sensor Automatic Watering System for Arduino"
brand: "hiletgo"
price: "¥4170"
currency: JPY
in_stock: true
reviews_count: 5
category: "Hi Letgo"
url: https://www.desertcart.jp/products/256334291-hiletgo-5pcs-lm393-soil-moisture-sensor-automatic-watering-system-arduino
store_origin: JP
region: Japan
---

# Dual digital & analog output Compact 3.2cm PCB with mounting holes Adjustable sensitivity knob HiLetgo 5pcs LM393 Soil Moisture Sensor Automatic Watering System for Arduino

**Brand:** hiletgo
**Price:** ¥4170
**Availability:** ✅ In Stock

## Summary

> 🌱 Automate your garden’s thirst with precision and style!

## Quick Answers

- **What is this?** HiLetgo 5pcs LM393 Soil Moisture Sensor Automatic Watering System for Arduino by hiletgo
- **How much does it cost?** ¥4170 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/256334291-hiletgo-5pcs-lm393-soil-moisture-sensor-automatic-watering-system-arduino)

## 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

- • **Customizable Sensitivity:** Easily tweak the blue potentiometer to set your ideal moisture threshold—perfect for any plant type.
- • **Plug & Play Compatibility:** Seamlessly integrates with Arduino and other microcontrollers for effortless automation.
- • **Energy Efficient Operation:** Works reliably on low voltage (3.3V-5V) without needing batteries—smart and sustainable.
- • **Precision Moisture Detection:** Dual output modes (digital & analog) for versatile, accurate soil moisture readings.
- • **Compact & Secure Installation:** Slim 3.2cm PCB with fixed bolt holes ensures neat, stable mounting in any garden setup.

## Overview

The HiLetgo LM393 Soil Moisture Sensor pack includes 5 compact, easy-to-install sensors featuring dual digital and analog outputs for precise soil moisture monitoring. With adjustable sensitivity and compatibility with Arduino systems, it empowers you to build smart, automatic watering solutions that keep your plants thriving effortlessly.

## Description

Wiring ( 4 -wire )： 1）VCC external 3.3V-5V2）GND External3）DO small board digital output interfaces ( 0 and 1 )4）AO analog output voltage of small platesInstruction:1.Sensor for detecting moisture in the soil2.Sodule is the blue potentiometer to adjust the threshold for soil moisture , clockwise adjustment, control humidity will be bigger, smaller counter-clockwise 3.Digital outputs D0 can be directly connected with the microcontroller through the microcontroller to detect high and low , thereby detecting soil moisture4.Small plates AO analog output modules can be connected and AD through the AD converter , you can get a more accurate value of soil moisture 5.Operating Voltage 3.3V-5V6.Has a fixed bolt holes for easy installation7.PCB Size : 3.2cm * 1.4mPackage Included:5*LM393 Soil Moisture Sensor

Review: Needed these sensors for a school project. Worked as expected and didn't need to calibrate them. Very happy with my purchase.
Review: I gave this a 5 star review, mostly because it does it's job. It works great if you are wanting it to detect a water leak. However if you want it to detect soil moisture, it will quickly corrode. There are some hacks to make it last longer by turning the power on/off so current isn't always running through it, but really for what you're paying, you cannot expect the same thing as a $100 moisture sensor. It makes a great DIY "hey look what I can do" project for not much money.

## Features

- This is a simple moisture sensor can be used to detect soil moisture, when the soil water shortage, the module outputs a high level, whereas the output low.
- Use this sensor to make an automatic watering device that will keep your garden of plants unmanaged.
- Module dual output mode, digital output is simple, more accurate analog output.
- Sensitivity adjustable (Figure blue digital potentiometer adjustment)
- Comparator using LM393 chip, stable job

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01DKISKLO |
| ASIN  | B01DKISKLO |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.3 4.3 out of 5 stars (149) |
| Customer reviews | 4.3 4.3 out of 5 stars (149) |
| Date First Available | 12 June 2016 |
| Date First Available  | 12 June 2016 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 36 g |
| Item model number | 3-01-0313-A |
| Item model number  | 3-01-0313-A |
| Manufacturer | HiLetgo® |
| Manufacturer  | HiLetgo® |
| Package Dimensions | 11.9 x 8.9 x 2.2 cm; 36 g |
| Package Dimensions  | 11.9 x 8.9 x 2.2 cm; 36 g |
| Part number | 3-01-0313-A |

## Images

![HiLetgo 5pcs LM393 Soil Moisture Sensor Automatic Watering System for Arduino - Image 1](https://m.media-amazon.com/images/I/61wRJWEfo5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by N***E on 13 July 2025*

Needed these sensors for a school project. Worked as expected and didn't need to calibrate them. Very happy with my purchase.

### ⭐⭐⭐⭐⭐ Review
*by K***H on 28 April 2019*

I gave this a 5 star review, mostly because it does it's job. It works great if you are wanting it to detect a water leak. However if you want it to detect soil moisture, it will quickly corrode. There are some hacks to make it last longer by turning the power on/off so current isn't always running through it, but really for what you're paying, you cannot expect the same thing as a $100 moisture sensor. It makes a great DIY "hey look what I can do" project for not much money.

### ⭐⭐⭐⭐ Review
*by X***R on 2 January 2021*

I am taking a point off for the wrong indication, you do not want to put this into soil it will corrode. It would also need an AC circuit to make it not corrode which you would need to modify this circuit to support. It is much better as a leak or water detection device. This is what I am using it for, to detect water leaks, in my setup. The device will self destruct if you leave it in water for any length of time. It will plate out you can put some conformal coating on it to help it last a bit longer in water, in the end though it is not the right part for soil moisture detection as advertised. If you are looking for a soil moisture detector you are better off with a capacitive style sensor.

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-20*