--- product_id: 99269963 title: "WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone" brand: "ecowitt" price: "SAR 146" currency: SAR in_stock: true reviews_count: 13 category: "Ecowitt" url: https://www.desertcart.com.sa/products/99269963-wh51-soil-moisture-sensor-soil-humidity-tester-accessory-only-can store_origin: SA region: Saudi Arabia --- # 0-100% soil moisture range 72s wireless data refresh IP66 waterproof for all weather WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone **Brand:** ecowitt **Price:** SAR 146 **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead of soil dryness — monitor smarter, water wiser! ## Quick Answers - **What is this?** WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone by ecowitt - **How much does it cost?** SAR 146 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/99269963-wh51-soil-moisture-sensor-soil-humidity-tester-accessory-only-can) ## 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 Alerts & History:** Receive email alerts and access detailed moisture trends on Ecowitt’s free weather server. - • **Real-Time Soil Insights:** Get moisture data every 72 seconds for precision irrigation decisions. - • **Weatherproof Durability:** IP66 rating ensures reliable outdoor and indoor use, rain or shine. - • **Seamless Multi-Sensor Support:** Connect up to 8 sensors on one gateway for comprehensive soil monitoring. - • **Energy Efficient & Long-Lasting:** Runs on lithium-ion batteries lasting nearly a year, minimizing maintenance. ## Overview The ECOWITT WH51 Soil Moisture Sensor is a wireless, IP66 waterproof device designed to deliver precise soil moisture readings every 72 seconds. Compatible with multiple Ecowitt gateways and consoles, it supports up to 8 sensors for scalable monitoring. Data uploads to Ecowitt’s free weather server enable remote access, historical tracking, and customizable alerts. Ideal for indoor and outdoor use, it runs efficiently on long-lasting lithium-ion batteries, empowering millennial professionals to optimize irrigation and protect their landscapes with smart, data-driven insights. ## Description desertcart.com: ECOWITT WH51 Soil Moisture Sensor Soil Humidity Tester - Accessory Only, Can Not Be Used Alone : Patio, Lawn & Garden Review: Works great with a Home Assistant integration - I use these soil meters to feed soil moisture values into my B-Hyve irrigation controllers via Home Assistant automations. The Ecowitt Home Assistant integration reads the soil moisture values, then feeds them to the B-Hyve integration to update the current estimated soil moisture with a real-time value. This helps to moderate how often the B-Hyve waters the different zones. They are not the cheapest of products, but they help reduce water use, so the upfront cost saves me money in the long term. Setup is very easy: set the Ecowitt application into pairing mode, insert the battery, close the lid and wait for the controller to recognize the new device. Once it is paired, put the waterproof caps in place. Make sure to dip the sensor in a glass of water when you first pair it so you get a moisture reading. After that you can install it at the desired location. The furthest sensor is 250ft from the Ecowitt hub and still gets good signal. Review: Hands down the BEST soil moisture meters! - I have tried sooooo many different moisture meters from really cheap crap with double metal rods that show light intensity, moisture, and soil pH which is always inaccurate, single metal rod by XLUX company which are very reliable and very accurate but you have to poke the soil in multiple places which damages roots, to expensive ones by Blumat that cost $90 per each meter which is way overpriced and it only shows the moisture without any graph 📈 or remote Bluetooth or Wi-Fi capabilities, and bunch of other ones that were always showing wrong readings, until someone told me to try these Ecowitt WH51 and WH51L sensors. The WH51 model is great and shows moisture levels from the top 7 inches of soil which is great for all types of pots up to 7 to 10 gallons. You can and should also buy their Wi-Fi Gateway that gives you access to the moisture meter data from anywhere in the world and it comes with graphs that show previous days, weeks, months readings that you can compare and dial in your watering habits for better performance. You can add up to 8 devices per each GW1100 Wi-Fi Gateway and it comes with an app, as well as their website and you can set up alerts to come in through the app, as well as get an email alert when soil goes below your indicated level which is very very useful. Now when it comes to raised beds and 20+ gallon containers I had to purchase the WH51L model which comes with a probe attached to 1 meter long cable which allows you to use them in deep pots/beds/containers and they can also be connected to the same GW1100 Wi-Fi Gateway. The WH51L model had just came out 2 weeks ago and is only available on Ecowitt's site, but I was able to buy them 2 weeks prior to them being available for sale and it turns out both of these models are very accurate. The Wi-Fi gateway also has a temperature and humidity and pressure sensor which gives you readings of the room where the gateway is located. I plugged in mine inside my grow room next to my grow tents to monitor the temperature and humidity inside that room to make sure my grow tents are in an optimal environment. I can't say enough good things about Ecowitt! Customer service is very helpful and very responsive. The only thing I did not like is that they are based in China and you can't really call them and the only method of communication is via email but like I said they are very helpful and responsive, however, they'll respond within 24 hours. If you haven't tried this company yet, then don't waste your money on anything else and do yourself a favor get this Wi-Fi Gateway along with the moisture meters because you won't be disappointed. I was very surprised that they are very inexpensive in comparison to other meters who have half the functions or even quarter functions and work so great and the battery lasts way over a year. I mean when comparing to the Blumat meter that cost $90 it's like comparing apples to oranges because for $90 it should be able to do more, at least have remote capability but it doesn't even have that option. In my opinion it's extremely overpriced and these Ecowitt devices without a doubt are blowing away Blumat meters. I hope this helps 🪴🪴 UPDATE: It's been 1.5 years since I got these sensors and the batteries gone from 1.6v power which is completely full batteries to now 1.5v and a couple of them at 1.4v which is almost full and still at 90% capacity. I haven't disconnected the batteries once and I use them continuously cycle after cycle and the only thing I do is I rinse them in between cycles and then insert them into the new container and change the name in the app and voila. Just amazing! 🤩 ## 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 | | Best Sellers Rank | #7,526 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #20 in Soil Meters | | Brand | ECOWITT | | Brand Name | ECOWITT | | Color | WH51B | | Customer Reviews | 4.2 out of 5 stars 1,059 Reviews | | Manufacturer | ECOWITT | | Model | WH51B | | Mounting Type | Insert into Soil | | Number of Items | 1 | | Part Number | WH51B | | UPC | 711639641259 | | Unit Count | 1 Count | ## Product Details - **Brand:** ECOWITT - **Color:** WH51B - **Manufacturer:** ECOWITT - **Mounting Type:** Insert into Soil - **Number of Items:** 1 ## Images ![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) ## Available Options This product comes in different **Color** options. ## 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: frequency 914915000 sample_rate 250000 protocol 142 report_meta time:off output mqtt:192.168.0.xxx,events=eco2mqtt[/id] 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 ### ⭐⭐⭐⭐⭐ Works great with a Home Assistant integration *by A***E on August 26, 2026* I use these soil meters to feed soil moisture values into my B-Hyve irrigation controllers via Home Assistant automations. The Ecowitt Home Assistant integration reads the soil moisture values, then feeds them to the B-Hyve integration to update the current estimated soil moisture with a real-time value. This helps to moderate how often the B-Hyve waters the different zones. They are not the cheapest of products, but they help reduce water use, so the upfront cost saves me money in the long term. Setup is very easy: set the Ecowitt application into pairing mode, insert the battery, close the lid and wait for the controller to recognize the new device. Once it is paired, put the waterproof caps in place. Make sure to dip the sensor in a glass of water when you first pair it so you get a moisture reading. After that you can install it at the desired location. The furthest sensor is 250ft from the Ecowitt hub and still gets good signal. ### ⭐⭐⭐⭐⭐ Hands down the BEST soil moisture meters! *by I***S on November 26, 2023* I have tried sooooo many different moisture meters from really cheap crap with double metal rods that show light intensity, moisture, and soil pH which is always inaccurate, single metal rod by XLUX company which are very reliable and very accurate but you have to poke the soil in multiple places which damages roots, to expensive ones by Blumat that cost $90 per each meter which is way overpriced and it only shows the moisture without any graph 📈 or remote Bluetooth or Wi-Fi capabilities, and bunch of other ones that were always showing wrong readings, until someone told me to try these Ecowitt WH51 and WH51L sensors. The WH51 model is great and shows moisture levels from the top 7 inches of soil which is great for all types of pots up to 7 to 10 gallons. You can and should also buy their Wi-Fi Gateway that gives you access to the moisture meter data from anywhere in the world and it comes with graphs that show previous days, weeks, months readings that you can compare and dial in your watering habits for better performance. You can add up to 8 devices per each GW1100 Wi-Fi Gateway and it comes with an app, as well as their website and you can set up alerts to come in through the app, as well as get an email alert when soil goes below your indicated level which is very very useful. Now when it comes to raised beds and 20+ gallon containers I had to purchase the WH51L model which comes with a probe attached to 1 meter long cable which allows you to use them in deep pots/beds/containers and they can also be connected to the same GW1100 Wi-Fi Gateway. The WH51L model had just came out 2 weeks ago and is only available on Ecowitt's site, but I was able to buy them 2 weeks prior to them being available for sale and it turns out both of these models are very accurate. The Wi-Fi gateway also has a temperature and humidity and pressure sensor which gives you readings of the room where the gateway is located. I plugged in mine inside my grow room next to my grow tents to monitor the temperature and humidity inside that room to make sure my grow tents are in an optimal environment. I can't say enough good things about Ecowitt! Customer service is very helpful and very responsive. The only thing I did not like is that they are based in China and you can't really call them and the only method of communication is via email but like I said they are very helpful and responsive, however, they'll respond within 24 hours. If you haven't tried this company yet, then don't waste your money on anything else and do yourself a favor get this Wi-Fi Gateway along with the moisture meters because you won't be disappointed. I was very surprised that they are very inexpensive in comparison to other meters who have half the functions or even quarter functions and work so great and the battery lasts way over a year. I mean when comparing to the Blumat meter that cost $90 it's like comparing apples to oranges because for $90 it should be able to do more, at least have remote capability but it doesn't even have that option. In my opinion it's extremely overpriced and these Ecowitt devices without a doubt are blowing away Blumat meters. I hope this helps 🪴🪴 UPDATE: It's been 1.5 years since I got these sensors and the batteries gone from 1.6v power which is completely full batteries to now 1.5v and a couple of them at 1.4v which is almost full and still at 90% capacity. I haven't disconnected the batteries once and I use them continuously cycle after cycle and the only thing I do is I rinse them in between cycles and then insert them into the new container and change the name in the app and voila. Just amazing! 🤩 ### ⭐⭐⭐⭐ Excellent addition to your ecowitt system - helpful for irrigation! *by C***S on September 19, 2025* These little sensors are awesome. I use them to help me determine when I need to water my lawn vs just running things on a set schedule. I find they're pretty consistent across the handful of sensors I have. They're also great on batteries, I'm using a mix of lithium (not rechargeable) and rechargeable NiMH batteries in them and they both seem to work well and have lasted most of the season without needing a replacement. I don't trust alkalines to not leak, but they would work fine too. The one criticism I may have is that they are fragile, if you accidentally kick or step on them they will snap at the interface of the body and electrodes and require replacement. My clumsy self has destroyed a couple of them. In a planter or vase or whatever, you would never run into issues, however I think there's probably a way to design them to be "safer" and less prone to breakage in a lawn or garden bed that would have someone walking around, with a flexible material at the interface of the body and electrodes. They would be 5 stars if not for this small issue you may never run into. I don't seem to have any connection issues and they show up consistently in my ecowitt app. They just "pair" quickly and easily and the signal seems pretty strong. Their overall design is nice and they don't look out of place in a lawn or garden, really. The weather caps seem to keep any water intrusion out and they have been outside in downpours with no issues. ## 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.com.sa/products/99269963-wh51-soil-moisture-sensor-soil-humidity-tester-accessory-only-can](https://www.desertcart.com.sa/products/99269963-wh51-soil-moisture-sensor-soil-humidity-tester-accessory-only-can) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-09-04*