---
product_id: 143988194
title: "Capacitive Soil Moisture Sensor Module Corrosion Resistant Moisture Detection Garden Watering for Arduino DIY 3.3~5.5V 5pcs"
brand: "songhe"
price: "E£ 2073"
currency: EGP
in_stock: true
reviews_count: 9
category: "Songhe"
url: https://www.desertcart.com.eg/products/143988194-capacitive-soil-moisture-sensor-module-corrosion-resistant-moisture-detection-garden
store_origin: EG
region: Egypt
---

# 3.3~5.5V wide voltage range 98mm precise sensing distance Corrosion-resistant ceramic metal Capacitive Soil Moisture Sensor Module Corrosion Resistant Moisture Detection Garden Watering for Arduino DIY 3.3~5.5V 5pcs

**Brand:** songhe
**Price:** E£ 2073
**Availability:** ✅ In Stock

## Summary

> 🌱 Stay ahead in smart gardening with precision you can trust!

## Quick Answers

- **What is this?** Capacitive Soil Moisture Sensor Module Corrosion Resistant Moisture Detection Garden Watering for Arduino DIY 3.3~5.5V 5pcs by songhe
- **How much does it cost?** E£ 2073 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/143988194-capacitive-soil-moisture-sensor-module-corrosion-resistant-moisture-detection-garden)

## Best For

- songhe enthusiasts

## Why This Product

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

## Key Features

- • **Robust Voltage Range:** Operates smoothly from 3.3 to 5.5 volts for versatile Arduino setups.
- • **Long-Lasting Durability:** Crafted from corrosion-resistant ceramic metal for reliable, long-term use.
- • **Plug & Play Compatibility:** Seamlessly integrates with Gravity I/O shields for instant DIY projects.
- • **Next-Gen Capacitive Sensing:** Say goodbye to corrosion and inaccurate readings with TL555 chip tech.
- • **Precision Moisture Tracking:** 98mm sensing distance with ±15% accuracy keeps your garden thriving.

## Overview

The Songhe Capacitive Soil Moisture Sensor Module uses advanced TL555 capacitive sensing technology to deliver accurate, corrosion-resistant soil moisture readings. Designed for Arduino DIY enthusiasts, it operates within a wide 3.3 to 5.5V range and features a 98mm sensing distance, ensuring reliable, real-time moisture data to optimize your garden’s health.

## Description

Because many people say NE555 does not work, now we have changed to TL555,This analog capacitive soil moisture sensor measures soil moisture levels by capacitive sensing, rather than resistive sensing like other types of moisture sensor It is made of a corrosion resistant material giving it a long service life Insert it into soil and impress your friends with the real-time soil moisture data This module includes an on-board voltage regulator which gives it an operating voltage range of 3.3 ~ 5.5V This sensor is compatible 3-pin "Gravity" interface, which can be directly connected to the Gravity I/O expansion shield

Review: Accurate and Not the cheap one - I was able to do a project with these and they worked really well. I did a lot of research on these and I think there are a lot of versions of this product that have some knockoff parts that don’t actually work, but this one seems to be legit!
Review: Perfect for tracking soil moisture - Ordered these to track my soil moisture in my vegetable garden. I covered one in plasti dip as I had seen a video saying the conformal coating was not the best. The plasti dip was a terrible idea as it threw the tradings way off. I have had the other 4 in the soil for the last month and they are reading perfectly!

## Features

- Chip is TL555
- Operating Voltage: 3.3 ~ 5.5 VDC
- Output Voltage: 0 ~ 3.0 VDC
- PH:2.54MM

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SYBSHGX |
| Best Sellers Rank | #31,713 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #62 in Soil Meters |
| Brand | Songhe |
| Date First Available | June 11, 2019 |
| Item Weight | 3.17 ounces |
| Item dimensions L x W x H | 3.86 x 0.91 x 0.39 inches |
| Item model number | F24 |
| Manufacturer | Songhe |
| Material | Ceramic Metal |
| Maximum Supply Voltage | 5.5 Volts (DC) |
| Measurement Accuracy | ±15% |
| Mounting Type | Tabletop |
| Output Type | Analog |
| Product Dimensions | 3.86 x 0.91 x 0.39 inches |
| Sensing Distance | 98 Millimeters |
| Specific Uses For Product | Intelligent agriculture, Moisture detection, Garden plants |
| Style | Modern |
| UPC | 738678030462 |
| Upper Temperature Rating | 55 Degrees Celsius |

## Product Details

- **Brand:** Songhe
- **Item Weight:** 90 Grams
- **Item dimensions L x W x H:** 3.86 x 0.91 x 0.39 inches
- **Material:** Ceramic Metal
- **Style:** Modern

## Images

![Capacitive Soil Moisture Sensor Module Corrosion Resistant Moisture Detection Garden Watering for Arduino DIY 3.3~5.5V 5pcs - Image 1](https://m.media-amazon.com/images/I/71I+61-rohL.jpg)

## Questions & Answers

**Q: do you have a library for the arduino?  How do I calibrate these?  Getting an analog reading does not mean anything..**
A: Take a reading while they are dry (that's your 0% reading), then take a sample of your soil and put it in a pot, insert the sensor and then water the pot until it can't hold any more water, then take another reading that's 100% saturated.
If you want you can put the sensor near a plant and see what level it reads when the plant looks stressed from to little water and make sure you keep it wetter than that.
Note: unless you are measuring pots, the moisture level near the surface is about useless for most plants unless they have very shallow roots..  for plants with deeper roots you probably want to waterproof the top portion of the sensor and bury it about 18" down.

**Q: What is the max distance from a pi  using 3v3 and using cat5 cable can the sensor be and still work ok?**
A: so not sure if you still need this answered or not, but for others it might help.
Im using an Arduino 5v, I used about 10 feet of cat5 cable from arduino to sensor. it changed the value some but you just need to calibrate it for that change.
example,
Arduino to senor without cat 5 = wet "850" / dry "450"
arduino to sensor with 10 feet cat 5 =  wet "700" /dry "300"

**Q: how does this work? do i have to connected to something else?**
A: Yes. Depends on what you want to do with it.
The output is a voltage value. You can connect to an Adruino type device to display it as analog or convert it to a calibrated digital display of percent moisture.

**Q: Will this work (as is) with the Micro:bit?**
A: I dont know understand your question. I plugged it into a data port on a esp 8266 read the data using C+ and  calibtrated it to meet my needs and transmitted it to a Blynk Control Panel  on the internet.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Accurate and Not the cheap one
*by S***Z on December 24, 2024*

I was able to do a project with these and they worked really well. I did a lot of research on these and I think there are a lot of versions of this product that have some knockoff parts that don’t actually work, but this one seems to be legit!

### ⭐⭐⭐⭐⭐ Perfect for tracking soil moisture
*by M***H on June 20, 2020*

Ordered these to track my soil moisture in my vegetable garden. I covered one in plasti dip as I had seen a video saying the conformal coating was not the best. The plasti dip was a terrible idea as it threw the tradings way off. I have had the other 4 in the soil for the last month and they are reading perfectly!

### ⭐⭐⭐⭐ Not bad but I don't expect them to last forever
*by R***H on March 16, 2022*

Have been using these a while, they work well. I'm concerned that they may die from eventual corrosion over time but after all we are shoving a PCB into spil. So far though they worked well for ESPHome and I get fairly accurate readings. Just measure the voltage at 100% saturation of your soil and also read it "dry" before putting into your plant. Has been working well and I'll probably order these again. Tip to the manufacturer: These would be so much better if you had some mounting holes on them. DIY-ers like myself build enclosures and I could easily attach my ESP32 directly to the soil monitor enclsoure that is 3D Printed. Without mounting holes I have to rely on pure pressure to keep the sensor in place. A couple of M3 holes at the top would be a nice addition. So would some solder points so I didnt have to use the cable but not nearly as important.

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-02-21*