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🌱 Stay ahead of your garden game with instant, wireless soil smarts!
The ECOWITT WH51 Soil Moisture Sensor is a wireless, IP66 waterproof device that measures soil moisture accurately within 72 seconds. Designed to work with Ecowitt gateways and consoles (sold separately), it supports up to 8 sensors simultaneously, enabling real-time remote monitoring via the Ecowitt APP or web platform. Ideal for indoor and outdoor use, it empowers millennial professionals to optimize plant health with smart alerts and detailed data analytics.












































| ASIN | B07JM621R3 |
| Battery Description | 1 x AA |
| Battery description | 1 x AA |
| Brand | ECOWITT |
| Brand Name | ECOWITT |
| Color | WH51B |
| Colour | WH51B |
| Customer Reviews | 4.4 out of 5 stars 989 Reviews |
| Manufacturer | ECOWITT |
| Model | WH51B |
| Mounting Type | Insert into the ground |
| Mounting type | Insert into the ground |
| Operating Humidity | 1-100% |
| Operating humidity | 1-100% |
| Part Number | WH51B |
| Temperature Accuracy | 1 degrees_celsius |
| Temperature Reading Accuracy | plus_minus_1_degree_celsius |
| UPC | 711639641259 |
| Unit Count | 1 Count |
| Upper Temperature Range | 50 Degrees Celsius |
| Upper temperature rating | 50 Degrees Celsius |
V**.
Good moisture sensor soil!
Good moisture sensor soil!
E**E
Excellent !
Je cherchais un Testeur d'humidité du sol efficace et pas trop cher et je suis vraiment enchanté par ce produit. Extrêmement facile à paramétrer, en 10 minutes j’avais installé le module wifi et la sonde qui donnait 0% dans l’air et 100% dans un verre d’eau. L’idée pour moi est de surveiller l’arrosage d’une haie et on voit parfaitement l’arrosage automatique à 6H du matin et le retour à la normal le long de la journée. Rien à dire de négatif.
G**A
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.
S**K
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.
U**R
Great little sensor, works reliably
The ECOWITT WH51 is a simple but very useful soil moisture sensor. Setup was quick, and it has been working reliably ever since. It gives me the data I need for watering decisions, and it integrates nicely into my weather setup. Great value for the price.
R**O
Molto utili per giardinieri smart!
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.
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