ECOWITT WH0291 Soil Moisture Tester Plant Soil Moisture Sensor Meter with Digital LCD Display
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Availability:
In Stock.
Arrives
Thursday, Jun 19
Color: WH0291B
Features
- Soil Moisture Meter: measures soil moisture content within 72 seconds to let you know when to water your plant
- Digital LCD Display: with lovely flower pot icon to directly display the moisture level, easy to read
- Indoor & Outdoor Use: waterproof moisture sensor, can be used for indoor outdoor potted plants, lawn, garden and more
- Custom Mode: with 0%AD and 100%AD custom mode to manually calibrate the low/high moisture value so that you can get more accurate result for different soil types
- Time Display: With 12/24hr digital time display; 2 AA batteries(not included) needed for the display console and soil moisture sensor(one for each)
Color: WH0291B
Brand: ECOWITT
Product Dimensions: 5.91"W x 1.18"H
Battery Description: 2 x AA batteries
Mounting Type: Tabletop
Color: WH0291B
Brand: ECOWITT
Product Dimensions: 5.91"W x 1.18"H
Battery Description: 2 x AA batteries
Mounting Type: Tabletop
Operating Humidity: [Broad]
Voltage: 1.5 Volts
Manufacturer: ECOWITT
UPC: 711639641105
Part Number: WH0291B
Item Weight: 6.7 ounces
Country of Origin: China
Item model number: WH0291B
Is Discontinued By Manufacturer: No
Material: Stone
Item Package Quantity: 1
Batteries Included?: No
Batteries Required?: No
Description Pile: 2 x AA batteries
Date First Available: April 21, 2018
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jun 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: WH51B
Works great, easy to use and setup for me was automatic, setup for the gateway wasn't too bad either wasn't as easy as the sensors. Literally as I'm reading the manual put the battery in checked the app and it was already register and showing readings. From there I would recommend placing the sensors in a completely dry pot of soil and then using the raw data info calibrate and then reverse it and use a completely drip pot of soil using that raw data and calibrate. If you don't I found that just using the default info would simply start with either lower or higher readings
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Reviewed in the United States on May 4, 2025 by Official
Color: WH51B
Setup could not be easier as long as you follow the instructions. Put in the batteries, hold within 1m/3' of the Ecowitt hub. Within a minute or two, it is added to the app. Soil moisture reading is updated every 70 seconds and every 10 seconds for 7 cycles after a moisture change (i.e. watering). Nicely constructed, feels like it will last. Using giant entryway pots exposed to full sun, which could dry out quickly if not monitored.
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Reviewed in the United States on May 15, 2025 by Chris
Color: WH51B
Great way to set alerts for moisture level. App is functional. The outdoor sensors work amazing. The indoor have some variance. I have one that seems to read slow and low. I have not worked on any calibration yet. While that’s a little frustrating it’s not a show stopper as you can still monitor it to the moisture level you need knowing it’s off a little. The form factor is a little large for small pots. But the size is dependent on the battery. They have added very little bulk so it’s about as good as it gets. If you have multiple locations with plants with different watering requirements this product is for you.
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Reviewed in the United States on March 10, 2025 by Simon C Robinson
Color: WH51B
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! 🤩
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Reviewed in the United States on November 26, 2023 by Yuriy Yuriy
Color: GW1106BU
I've tried alot of moisture meters and they either crap out quickly, aren't highly accurate without the ability to calibrate or require manually taking soil moisture with a probe. This takes care of all of that. Ecowitt makes good products in general. Also use this brand for a wireless remote temp. gauge they make. As far as these temp gauges, just make sure you calibrate them when you get them and after youve connected, they're pretty much plug and play. The gaskets around the battery component can fail sometimes. I lost one of these to moisture getting in the battery compartment. Now, I make sure I tighten the battery case tightly, put the rubber cap on the back and I've augmented by putting a bead of silicone sealant around that rubber cap to really ensure all moisture is kept out. Batteries last atleast through season so I just break the seal, replace battery and reapply seal at beginning of season. Seems to work for me
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Reviewed in the United States on April 4, 2025 by AmericanConsumerX
Color: WH0291B
I've been using this for about a year and a half, now - and although I have yet to change the batteries, the transmitter is still going. The receiver is still working, which is great; I know that my watering automation kicks in when I see the moisture number go up. The app that you can use is nice, if you have the Ecowitt base station. The only problem I have is with the physical receiver; its buttons just stopped working about 6 months in, so now I can never set the time on it. If I remember to insert the batteries exactly at noon, this is not a BIG problem, but since I can't ever remember to do that :P I've just covered the clock part of the readout with tape. :/
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Reviewed in the United States on December 12, 2024 by Dan Overlander
Color: WH51B
Purchased this for some irrigation checks for our Florida home. The Ecowitt sensors work great. Adding them is easy and seem to be accurate enough. Better than guessing.
Reviewed in the United States on May 5, 2025 by M Miraglia