---
product_id: 419747720
title: "ECOWITT WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone"
brand: "ecowitt"
price: "€ 63.24"
currency: EUR
in_stock: true
reviews_count: 5
category: "Ecowitt"
url: https://www.desertcart.ie/products/419747720-ecowitt-wh51-soil-moisture-sensor-max-8-channels-soil-humidity
store_origin: IE
region: Ireland
---

# 8-channel multi-sensor support 72s fast wireless data IP66 waterproof rating ECOWITT WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone

**Brand:** ecowitt
**Price:** € 63.24
**Availability:** ✅ In Stock

## Summary

> 🌱 Stay ahead of the drought curve with precision soil insights!

## Quick Answers

- **What is this?** ECOWITT WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone by ecowitt
- **How much does it cost?** € 63.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/419747720-ecowitt-wh51-soil-moisture-sensor-max-8-channels-soil-humidity)

## Best For

- ecowitt enthusiasts

## Why This Product

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

## Key Features

- • **Durable All-Weather Design:** IP66 waterproof sensor built for both indoor and outdoor use, from potted plants to large farms.
- • **Rapid Wireless Soil Sensing:** Get precise soil moisture data in just 72 seconds for smarter watering decisions.
- • **Real-Time Remote Monitoring:** View live soil moisture stats anytime via Ecowitt APP or web portal—stay connected wherever you are.
- • **Smart Alerts & Historical Data:** Receive email notifications and access detailed moisture history to optimize plant health and water usage.
- • **Seamless Multi-Channel Integration:** Supports up to 8 sensors on a single gateway for comprehensive soil monitoring.

## Overview

The ECOWITT WH51 is a wireless soil moisture sensor designed for accurate, rapid soil humidity measurement. Compatible with Ecowitt gateways and consoles, it supports up to 8 sensors per gateway, enabling real-time remote monitoring via app or web. Its IP66 waterproof rating ensures reliable indoor/outdoor use, making it ideal for gardens, farms, and potted plants. Note: Requires a compatible gateway for data display and cannot be used standalone.

## Description

Ecowitt WH51 Soil Moisture Sensor measures soil moisture content quick and accurate. The data can be accepted by GW1100 Wi-Fi Gateway(sold separately) and can be viewed on our WS View/Ecowitt APP after the Wi-Fi configuration done.

Review: Dobry sensor bezprzewodowy - Sensor łączy się nie tylko z dedykowaną bramką WiFi. Połączył się z moją stacją sbs-ws-500 i dobrze pokazuje wilgotność gleby w ogrodzie. Wskazania mogę obserwować zarówno na stacji jak i w aplikacji Ecowitt. Polecam.
Review: Removes the guesswork about when and how much to water.

## Features

- 【Reliable Wireless Soil Moisture Sensor】: Equipped with advanced chip, ECOWITT WH51 wireless soil moisture sensor collect soil moisture data within 72 seconds when totally inserted into the soil. The data can be transmitted via GW1000/GW1100 Wi-Fi gateway( sold separately ) and the live data can be viewed on WS View Plus or Ecowitt APP after Wi-Fi configuration done.
- 【Support Pairing with Various Ecowitt Gateway/Consoles】: The GW1100 Gateway(sold separately) supports up to 8 WH51 Soil Moisture Sensors, and the channel name can be edited. When paired with a Weather Station Console (HP2551/HP3500/HP3501), up to 8 channels WH51 sensors supported and you can view soil moisture data in real-time on the Display. When paired with Console WH0291, you only can view soil moisture data in real-time on the Display.
- 【Uploading to Ecowitt Weather Server】: Supports uploading to our free Ecowitt weather server(ecowitt.net) to view the soil moisture data graph and download the history records on the website; support setting and receiving email alerts from the server; channel names can be edited on the website; supports remote monitoring with smart phone, laptop, or computer by visiting the website.
- 【Indoor & Outdoor Use】: The IP66 waterproof moisture sensor can be used for indoor & outdoor potted plants, lawn, garden, farm etc. ★ Please Note : ecowitt WH51 soil moisture sensor is designed to measure soil moisture ONLY. Do not touch the stone or hard rock soil. ★
- 【NOTE BEFORE PURCHASE】: Ecowitt WH51 soil moisture sensor could not directly display the soil humidity readout, which can not be used alone. North America:915MHz; Europe:868MHz; Other areas: 433MHz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07JM621R3 |
| Battery Description | No batteries required |
| Brand | ECOWITT |
| Brand Name | ECOWITT |
| Colour | WH51B |
| Country of Origin | USA |
| Customer Reviews | 4.5 out of 5 stars 931 Reviews |
| Manufacturer | ECOWITT |
| Mounting Type | Insert into Soil |
| UPC | 711639641259 |

## Product Details

- **Battery Description:** No batteries required
- **Brand:** ECOWITT
- **Colour:** WH51B
- **Manufacturer:** ECOWITT
- **Mounting Type:** Insert into Soil

## Images

![ECOWITT WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone - Image 1](https://m.media-amazon.com/images/I/61JOlQodiCL.jpg)
![ECOWITT WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone - Image 2](https://m.media-amazon.com/images/I/51Hw4r7s4LL.jpg)
![ECOWITT WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone - Image 3](https://m.media-amazon.com/images/I/51p2b45T11L.jpg)
![ECOWITT WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone - Image 4](https://m.media-amazon.com/images/I/61AJ5wcUpxL.jpg)
![ECOWITT WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone - Image 5](https://m.media-amazon.com/images/I/61WjI+apDBL.jpg)

## Questions & Answers

**Q: Do you have wh51 transmits at 433 mhz? what would it be named? wh51a? or wh51c?**
A: My WH51B devices use 914915000, or about 915Mhz. If you are trying to identify which frequency band your device is using, I couldn't do it from packaging. The best answer that I could give you is that if you bought it on Amazon with a US shipping address, then you probably got the 915 version instead of the 433 that you thought you were buying. I understand that if you need a 433, you can contact Ecowitt and they will send you one intended for another country.

RTL_433 can be configured to use the 915 band, though this will mean you have two instances of RTL_433 and the sdr hardware. I do. The WH51B is not a powerful transmitter, and the receiver can't be a long distance away.

I struggled with getting the WH51B to work with RTL_433, so I'll share my config:
<code>
frequency 914915000
sample_rate 250000
protocol 142
report_meta time:off
output mqtt:192.168.0.xxx,events=eco2mqtt[/id]
</code>

If you have trouble, post in the RTL_433 github issues and someone will help.

**Q: What is %ad? how does it relate to any standard measure of soil water content**
A: Hi, the %ad refers to the defaut dry definition on the fixed slope rate linear system.
We recommend you to have a look at the manual(you can download it on our official website) from P8-12 to understand that better.
Any question, please contact us at support@ecowitt.com.

**Q: Can you just leave the wh51 soil moisture sensor in the ground outdoors to constantly check the soil with the gw1000 remotely?**
A: Hi, yes. The wh51 is communicating with the gw1000 via RF signal and the reporting distance is within 300feet/100m(in open area).
After you finish the wifi configuration on the free WS View app with the gw1000, you can upload the data to our own weather server: ecowitt.net.
Then you can remoting the data by visting the ecowitt.net website(need to add your gw1000 device on the website first).
Any other question, please let us know at support@ecowitt.com.:)

**Q: Can this who291 transmit to the lcd display panel and also a gw1000 wifi gateway for logging, at the same time?**
A: Hi, GW1000 can accept the sensor data in the WH0291 and upload to our free weather server: ecowitt.net. So the GW1000 + WH0291 works!
The WH0291 actually is the WH51 sensor with a display.
Any other question, please contact us at support@ecowitt.com.:-)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Dobry sensor bezprzewodowy
*by G***A on 24 May 2025*

Sensor łączy się nie tylko z dedykowaną bramką WiFi. Połączył się z moją stacją sbs-ws-500 i dobrze pokazuje wilgotność gleby w ogrodzie. Wskazania mogę obserwować zarówno na stacji jak i w aplikacji Ecowitt. Polecam.

### ⭐⭐⭐⭐⭐ Removes the guesswork about when and how much to water.
*by S***K on 2 August 2022*



### ⭐⭐⭐⭐ Excellente connexion
*by U***É on 22 July 2025*

J'ai été très agréablement surpris par la vitesse de connexion de cet hygromètre de jardin et de son intégration dans l'appli de ma station météo. Comme l'ensemble est intégré dans HomeAssistant c'est ensuite un jeu d'enfant de régler le goutte à goutte par l'ouverture commandée d'une vanne hydraulique zigbee. Pour autant la réactivité est moins significative que ce que j'imaginais, tant en vitesse qu'en variations. j'ai lu sur la brochure qu'on pouvait moduler des mesures mais je ne l'ai pas encore tenté. Tel que c'est, ça me va, on peut aussi intégrer les données du thermomètre/hygromètre de l'air de la serre, puis peaufiner les réglages sur des périodes longues mais, au bout du compte, le goutte à goutte c'est quand même pas de l'horlogerie.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-31*