---
product_id: 275004036
title: "ECOWITT WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone"
brand: "ecowitt"
price: "356 zł"
currency: PLN
in_stock: true
reviews_count: 6
category: "Ecowitt"
url: https://www.desertcart.pl/products/275004036-ecowitt-wh51-soil-moisture-sensor-soil-humidity-tester-accessory-only
store_origin: PL
region: Poland
---

# 72s fast wireless data Real-time app & web monitoring IP66 waterproof for all weather ECOWITT WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone

**Brand:** ecowitt
**Price:** 356 zł
**Availability:** ✅ In Stock

## Summary

> 🌱 Stay ahead of the curve—monitor your soil like a pro!

## Quick Answers

- **What is this?** ECOWITT WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone by ecowitt
- **How much does it cost?** 356 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/275004036-ecowitt-wh51-soil-moisture-sensor-soil-humidity-tester-accessory-only)

## 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 Remote Monitoring:** Access live soil moisture stats anytime via Ecowitt App or web portal—stay connected wherever you are.
- • **Rapid Wireless Soil Sensing:** Get precise soil moisture data in just 72 seconds with advanced chip technology.
- • **Robust All-Weather Durability:** IP66 waterproof design ensures reliable indoor and outdoor use, rain or shine.
- • **Seamless Multi-Sensor Integration:** Supports up to 8 sensors per gateway for comprehensive garden or farm monitoring.
- • **Customizable Alerts & Data History:** Set email alerts and review detailed moisture trends on Ecowitt’s free weather server.

## Overview

The ECOWITT WH51 Soil Moisture Sensor is a wireless, IP66 waterproof device designed for fast and accurate soil moisture measurement. It pairs with Ecowitt gateways and consoles (sold separately) to provide real-time data accessible via mobile app or web, supporting up to 8 sensors per gateway. Ideal for indoor and outdoor plants, gardens, and farms, it enables remote monitoring, customizable alerts, and historical data tracking to optimize soil health management.

## 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: Good moisture sensor soil! - Good moisture sensor soil!
Review: 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.

## 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 |
| Customer Reviews | 4.5 4.5 out of 5 stars (875) |
| Date First Available | 28 December 2018 |
| Item model number | WH51B |
| Manufacturer | ECOWITT |
| Material type | Plastic |
| Package Dimensions | 17.7 x 10.01 x 3.2 cm; 100 g |
| Part number | WH51B |

## Product Details

- **Battery description:** 1 x AA
- **Brand:** ECOWITT
- **Colour:** WH51B
- **Mounting type:** Insert into the ground
- **Operating humidity:** 1-100%

## Images

![ECOWITT WH51 Soil Moisture Sensor 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

### ⭐⭐⭐⭐⭐ Good moisture sensor soil!
*by V***. on 7 January 2026*

Good moisture sensor soil!

### ⭐⭐⭐⭐⭐ Review
*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.

### ⭐⭐⭐⭐⭐ Review
*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.

## 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

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-16*