---
product_id: 419747720
title: "WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone"
brand: "ecowitt"
price: "4917708₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Ecowitt"
url: https://www.desertcart.vn/products/419747720-wh51-soil-moisture-sensor-max-8-channels-soil-humidity-tester
store_origin: VN
region: Vietnam
---

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

**Brand:** ecowitt
**Price:** 4917708₫
**Availability:** ✅ In Stock

## Summary

> 🌱 Stay ahead of the watering curve with precision soil sensing!

## Quick Answers

- **What is this?** WH51 Soil Moisture Sensor Max 8 Channels Soil Humidity Tester - Accessory Only, Can Not Be Used Alone by ecowitt
- **How much does it cost?** 4917708₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/419747720-wh51-soil-moisture-sensor-max-8-channels-soil-humidity-tester)

## 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

- • **Smart App Integration:** Effortlessly track soil moisture remotely through Ecowitt APP or WS View Plus for data-driven plant care.
- • **Real-Time Soil Insights:** Get soil moisture updates every 72 seconds for precision watering decisions.
- • **Robust Weatherproof Design:** IP66-rated sensor built to withstand indoor and outdoor environments without missing a beat.
- • **Cloud-Enabled Alerts & History:** Access historical moisture data and receive customizable email alerts via Ecowitt’s free weather server.
- • **Seamless Multi-Channel Monitoring:** Supports up to 8 sensors simultaneously via Ecowitt gateways for comprehensive garden coverage.

## Overview

The ECOWITT WH51 Soil Moisture Sensor is a wireless, IP66 waterproof device designed to deliver accurate soil moisture data every 72 seconds. Compatible with Ecowitt gateways and consoles, it supports up to 8 sensors for multi-zone monitoring. Data is accessible in real-time via the Ecowitt APP or WS View Plus, with cloud storage and alert features for proactive plant care. Ideal for indoor and outdoor use, this sensor empowers millennial professionals to optimize watering schedules and elevate their gardening game.

## 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. - This review evaluates the “WH51 Soil Moisture Sensor” made by ECOWITT. The product was shipped with no excessive or wasteful packaging. What’s in the box: one (1) WH51 soil moisture sensor, and an owner’s manual. I will preface this review by saying that I’m a Country Boy whose entire life has revolved around flower and food gardens. Any gardener will tell you that the quality of your soil is instrumental for crop growth. I recently purchased an Ecowitt WittBoy weather station that supports a multitude of add-on sensors, this soil moisture sensor being one of them. For years I have done away without using a moisture meter due to wildly inaccurate readings I would get; so I was eager to try this unit out. First impressions: The overall quality of the meter looks very good, with a durable hard plastic ABS casing. The end cap unscrews to house an “AA” battery (not included, lithium recommended). The weatherproof end cap is further protected by a slide-on rubber cap. It is imperative to note that this is not a standalone sensor; you need an Ecowitt monitoring hub. The set-up was easy: install a new battery, open the Ecowitt APP that you set up with your monitoring hub, and add the WH51 sensor. Within a minute the sensor calibrates and sends real-time data back to you via your monitoring hub/APP. I bought this sensor to specifically monitor my hanging potted plants. I tested unit one of my pots by placing it as instructed. After acclimating (about 10-20 minutes) the sensor reported that the soil moisture content was 33%. To check the accuracy of the sensor, I installed an old-school analog probe in the same pot. After acclimating (about 10-20 minutes) the analog probe reported that the soil moisture content was 35%. The sensor appears to be accurate within reason. The WH51 sensor removes the guesswork about when and how much to water. My only suggestion to the manufacturer is to include a lug to tie a tether with a tag so that you don’t lose/forget about the sensor when you dump the pot! Since this really doesn’t take away from the usability of the product, I will not deduct any stars for it. In order to determine long-term meter durability and accuracy, I intend to monitor this product over the next 4-6 months. Should anything change over this period, I will update this review accordingly. Cost-effectiveness and value: Overall I am very satisfied with the product; it is compact, portable, and easy to use. At a current price of $32.99 (plus a $3 off coupon), it is of great value. In summary: the “WH51 Soil Moisture Sensor” made by ECOWITT is well made, compact, accurate, and easy to use. It delivers all this at a reasonably low price. This product is a must-have for the avid gardener. I would recommend this product without reservation. Pros 👍: ✔ Well made from quality materials. ✔ Very easy to set up and use. ✔ Sensor reports back every 60 seconds (as configured by your monitoring hub). ✔ Uses one (1) AA battery. ✔ IP66 water resistant rated. ✔ Removes the guesswork out of when to water. ✔ Accurate. ✔ Great price point, good value. Cons👎: ✘ None! Manufacturer Suggestions 🖐: ✔ Provide a lug to tie a tether marker to avoid loss.

## 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 860 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

![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)

## 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*

This review evaluates the “WH51 Soil Moisture Sensor” made by ECOWITT. The product was shipped with no excessive or wasteful packaging. What’s in the box: one (1) WH51 soil moisture sensor, and an owner’s manual. I will preface this review by saying that I’m a Country Boy whose entire life has revolved around flower and food gardens. Any gardener will tell you that the quality of your soil is instrumental for crop growth. I recently purchased an Ecowitt WittBoy weather station that supports a multitude of add-on sensors, this soil moisture sensor being one of them. For years I have done away without using a moisture meter due to wildly inaccurate readings I would get; so I was eager to try this unit out. First impressions: The overall quality of the meter looks very good, with a durable hard plastic ABS casing. The end cap unscrews to house an “AA” battery (not included, lithium recommended). The weatherproof end cap is further protected by a slide-on rubber cap. It is imperative to note that this is not a standalone sensor; you need an Ecowitt monitoring hub. The set-up was easy: install a new battery, open the Ecowitt APP that you set up with your monitoring hub, and add the WH51 sensor. Within a minute the sensor calibrates and sends real-time data back to you via your monitoring hub/APP. I bought this sensor to specifically monitor my hanging potted plants. I tested unit one of my pots by placing it as instructed. After acclimating (about 10-20 minutes) the sensor reported that the soil moisture content was 33%. To check the accuracy of the sensor, I installed an old-school analog probe in the same pot. After acclimating (about 10-20 minutes) the analog probe reported that the soil moisture content was 35%. The sensor appears to be accurate within reason. The WH51 sensor removes the guesswork about when and how much to water. My only suggestion to the manufacturer is to include a lug to tie a tether with a tag so that you don’t lose/forget about the sensor when you dump the pot! Since this really doesn’t take away from the usability of the product, I will not deduct any stars for it. In order to determine long-term meter durability and accuracy, I intend to monitor this product over the next 4-6 months. Should anything change over this period, I will update this review accordingly. Cost-effectiveness and value: Overall I am very satisfied with the product; it is compact, portable, and easy to use. At a current price of $32.99 (plus a $3 off coupon), it is of great value. In summary: the “WH51 Soil Moisture Sensor” made by ECOWITT is well made, compact, accurate, and easy to use. It delivers all this at a reasonably low price. This product is a must-have for the avid gardener. I would recommend this product without reservation. Pros 👍: ✔ Well made from quality materials. ✔ Very easy to set up and use. ✔ Sensor reports back every 60 seconds (as configured by your monitoring hub). ✔ Uses one (1) AA battery. ✔ IP66 water resistant rated. ✔ Removes the guesswork out of when to water. ✔ Accurate. ✔ Great price point, good value. Cons👎: ✘ None! Manufacturer Suggestions 🖐: ✔ Provide a lug to tie a tether marker to avoid loss.

### ⭐⭐⭐⭐⭐ Molto utili per giardinieri smart!
*by R***O on 29 September 2025*

Dopo aver acquistato due dispositivi per l'irrigazione automatica smart di altra marca, installati su un terrazzo, ho cercato a lungo dei sensori da mettere nei vasi per verificare che la quantità d'acqua erogata fosse sufficiente, ma non eccessiva, al fine di evitare cospique fuoriuscite di acqua dai vasi stessi (con inevitabile impatto sui precari equilibri condominiali...) Ne ho provati diversi ma ho scelto di acquistare 8 sensori ECOWITT perchè sono gli unici che presentano diverse utili caratteristiche: - Dati relativi all'umidità della terra (% e AD) facilmente consultabili da un'app dedicata - connessione a un piccolo hub in grado di rilevare temperatura, umidità e pressione ambientale, in aggiunta ai dati rilevati dai sensori connessi, dotato di ottima copertura radio e stabilmente collegato al servizio cloud via wi-fi - Integrazione disponibile per Home Assistant perfettamente funzionante - Possibilità di connettere i sensori alle stazioni meteo ECOWITT piu' complete - Lunga durata delle batterie Riguardo l'affidabilità posso dire che dopo due anni i sensori non mi hanno dato alcun problema e solo ora sto cambiando le pile inizialmente installate. Considerata l'esperienza positiva credo che sostituiro' presto gli altri dispositivi meteo installati (anemometro, pluviometro e diversi termometri interni ed esterni) con una stazione meteo integrata ECOWITT, dotata di display (in aggiunta all'app), che potrebbe sostituire il piccolo hub acquistato inizialmente per i soli sensori di umidità del suolo.

## Frequently Bought Together

- ECOWITT WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone
- ECOWITT Wi-Fi Gateway Weather Station, with Built-in Temperature, Humidity, and Barometric Sensors, IOT Ready, Supports Ecowitt Sensors Developed, USB Power, 915 MHz
- Ecowitt GW2000 Wi-Fi Hub for Wittboy Weather Station, with Built-in on Board Barometer and Thermometer/Hygrometer Sensor, Support Ecowitt Weather Sensors

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vn/products/419747720-wh51-soil-moisture-sensor-max-8-channels-soil-humidity-tester](https://www.desertcart.vn/products/419747720-wh51-soil-moisture-sensor-max-8-channels-soil-humidity-tester)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-03*