The SoilDrops soil sensor: a white dome on a green probe
A hand pushing the sensor into a lawn
The sensor sitting low in the grass
FOR YOUR SOILDROPS CONTROLLER

Soil Moisture Sensor

Got your controller on Amazon? Add the sensors here. One per zone: push it in, pair it, done.

★★★★★ 4.7 · 26 reviews
$30each
Readings free, forever
Works with The original SoilDrops Controller Gen 2
How many zones?
One sensor per zone · save up to 21%
4
Total$103.20
4 sensors × $30 −$16.80 multi-sensor discount · free shipping
✓ Ships in 1–2 days✓ 30-day returns✓ 1-year warranty
4 sensors
$103.20
FEATURES

Built to live in your lawn.

Push it in once. No tools, no wires, no digging.
A lawn mower passing over a SoilDrops soil sensor; the sensor's probe reaches down into the soil1.25 in above soil6 in probe
6 in
probe depth
Reads moisture down where the roots drink.
1.25 in
above the soil
A low dome. Mow right over it.
~100 ft
to the controller
Wireless. Nothing to bury.
1–2 yr
per battery
One CR2477 coin cell. The app tells you when it's low.
NO SUBSCRIPTION NEEDED

Your soil readings are free. Forever.

Works from day one, on the original controller and Gen 2.

Live moisture, every zone
FREE
Moisture Skip
FREE
Moisture trends
FREE
Battery & signal
FREE
Moisture Skip
Front lawn · 6:00 am schedule
FREE
Target 45%
Skips at 50%+
Thu 41%
Tue 56%
Tue 6:00 am · soil 56%
Still wet from the weekend rain
SKIPPED
Thu 6:00 am · soil 41%
Dry enough, so it runs on schedule
WATERED
Your schedule, minus the runs your soil didn't need.
THE ONE PAID UPGRADE

Want it to plan the watering, too? That's Autopilot.

Free readings make your schedule smarter. Autopilot replaces the schedule: it decides whether, when and how long each zone waters.

AUTOPILOT
30 days free
$60a year · about $5 a month
  • No schedule to set
  • Decides whether, when and how long, zone by zone
  • Leak alerts
Turn it on in the app; billed through the App Store or Google Play. Cancel any time and your readings and Moisture Skip keep working.
How Autopilot plans →
WILL IT WORK WITH MINE?

Works with every SoilDrops Controller.

  • The original SoilDrops Controller, including ones bought on Amazon
  • SoilDrops Controller Gen 2
  • Not for SoilDrops hose timers, which run in a different app
Not sure which controller you have? Text a photo to 626-657-3580 and we'll tell you.
Specs
Battery
CR2477 coin cell · replaceable
Outdoors
Built for soil, rain and sprinklers
Warranty
1 year limited (battery excluded)
Model
SNS-002
  • 5 stars: 18 (69%)
  • 4 stars: 8 (31%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Christopher M.
Simple install and very useful data

I am very impressed with the overall simplicity of this device. You take it out of the box, link it to your controller, and shove it straight into the ground without needing any tools at all. It provides continuous, real-time data on how wet the soil actually is. I find myself checking the app frequently just to see the moisture trends. By combining the local weather forecast with the actual ground moisture, it manages to create perfect schedules for my grass. It’s a smart way to conserve water without sacrificing a green lawn.

S
Samantha H.
Flawless integration with the controller

This integrates flawlessly with the 8-zone smart controller. I placed it in a notoriously dry part of my lawn. Now, the system uses that exact data to create schedules that keep that specific area green. Very easy installation without any digging or wiring required.

J
Justin E.
Low profile and mower safe

It sits low enough that my mower safely passes right over it without any issues. It really takes the guesswork out of my watering routine.

R
Rachel M.
Sits completely flush with grass

The sensor paired quickly to the hub and sits completely flush with the grass. The soil readings have been highly accurate for me.

M
Michael T.
Easy setup and totally mower friendly

Getting this moisture sensor hooked up to my main 8-zone controller was incredibly straightforward. I literally just pushed it right into the soil in the front yard where the sun hits the hardest. It's really interesting to watch the real-time moisture data update on the app. The best part is how the system uses this information to create watering schedules automatically, rather than me just guessing when the grass is thirsty. It sits low enough in the grass that I can run my mower right over it without any fear of clipping it.

A
Anonymous
I love how they work setup was a bit of a challenge until

Ok I have the full system with the controller and the soil moisture sensors. I am using them for my lawn. I like that I can get details that I can then look at and do a google search to understand them better. I like that when combined with the controller it only waters the zones that need it based upon what i have set the moisture level to and it skips the zones that are above the level that has been set. Connecting them was a bit of a challenge at first until I just went through the whole controller setup and then set them to each zone individually instead of during the setup of the controller. It worked out better so you did not have to redo the setup of zones (all of them) again.

J
John S.
Stops unnecessary watering cycles

This is a very useful add-on for my irrigation setup. It reliably stops my sprinklers from running when the soil is already sufficiently wet.

D
Daniel W.
Good readings but sparse instructions

It gives accurate readings and is entirely wireless. It was easy to push into my garden soil, and the battery life has been solid so far. It definitely helps reduce my water bill by preventing unnecessary watering. I just wish the included instructions had a little more detail on optimal placement.

M
Matthew C.
Mower safe with accurate moisture feedback

The hardware itself is excellent. Pushing it into the lawn was completely effortless, and it sits so low that it’s virtually invisible and totally safe from my mower blades. The moisture feedback is very consistent and seems highly accurate based on the soil feel. It definitely helps the main controller figure out when watering is actually necessary. I docked one star simply because I wish the app provided a slightly longer historical graph of the moisture trends over the season. Functionally, the sensor does exactly what it promises and has reduced my water usage.

M
Megan A.
Helps create perfect watering schedules

Getting real-time moisture data on my phone is incredibly helpful. It helps the system create perfect watering schedules for my entire front yard.

J
James G.
Accurate but frustrating initial pairing

The moisture readings seem accurate, and it does communicate well with the main controller to adjust the watering. However, I had a hard time getting it to pair on the first try. It took three attempts before the app finally recognized it. Works fine now, but setup was annoying.

N
Nicole T.
Simple install and peace of mind

This was a super simple installation process. It gives me peace of mind knowing the exact moisture level of my lawn at any time.

K
Kayla O.
Solid battery life so far

This is a solid sensor and it feels durable. The battery life is holding up very well so far. A handy addition for the 8-zone system.

A
Ashley K.
The missing piece for dry patches

This sensor was the missing piece to my home irrigation setup. I’ve struggled with stubborn dry patches near my driveway for years. I popped this wireless sensor into that exact spot, and now my controller knows exactly when that specific zone is thirsty. The fact that it doesn’t require any complicated wiring is fantastic. It just works quietly in the background. The battery still shows as fully charged after several weeks of use. If you own the 8-zone controller, you really need to add at least one of these to get the most out of it.

E
Elizabeth N.
Handy device with minor range limits

This is a handy device for the yard. Pairing it to the controller was simple, and the battery is holding up great. It provides good moisture feedback to the app. My only issue is that the wireless range struggled slightly through my thick brick walls.

W
William L.
Eliminated my yard overwatering problem

It uses the soil data to help create smart schedules automatically. This has totally eliminated my yard's overwatering problem.

A
Amanda D.
Flush with the grass and safe

I really appreciate that I don't have to worry about hitting this with the lawnmower. It sits perfectly flush with the grass. The soil data is sent directly to the app, helping it create schedules automatically. No more accidentally watering while the ground is still wet.

S
Sarah B.
Solved my sandy soil watering issues

My yard has notoriously sandy soil that dries out incredibly fast, so a traditional timer never really worked well for my landscaping. Putting this sensor in the ground has taken all the guesswork out of my lawn care routine. The moisture readings match up perfectly when I compare them to my old manual probe. It feeds data back to the SoilDrops controller to help it figure out optimal watering schedules. I've had it out there for a few months now and the battery is still holding steady. Being able to just swap the battery later is a nice touch.

J
Jessica R.
Fixed the overwatering in my backyard

Before getting this, I was constantly overwatering my shaded backyard and turning it into a muddy mess. I placed the sensor right in that problem area to monitor it. Now it reads the exact moisture level, and the system uses that information to create schedules that actually make sense for the shaded grass. I really appreciate that it sits low enough that my lawnmower blades pass right over it safely. It feels well-built and has completely eliminated the need for me to go out and manually check the soil with my finger every other day.

A
Andrew F.
Real time data and mower friendly

It is great to finally have a way to know what's going on under the dirt. The real-time moisture data is accurate and updates quickly. It's totally mower-friendly, which was a big concern for me. Highly recommend it if you want to stop guessing when to run your sprinklers.

L
Lauren V.
Easy pairing and accurate readings

Pairing this with my controller was incredibly easy. I just pushed it straight into the lawn, and the moisture readings are very accurate.

N
Nicholas B.
Works flawlessly with the controller

The sensor works flawlessly with my main controller. Having a replaceable battery is a really nice touch. It has been great for my vegetable garden.

E
Emily S.
Reads fine but fragile in clay

I like the concept of getting real-time moisture data on my phone, and when it works, it’s great. It pairs with the 8-zone controller to help create schedules, which is a neat feature. However, my yard has a lot of heavy clay and rocks. When I tried to push the sensor in, it felt like the plastic might bend or snap if I pushed too hard. I had to pre-dig a pilot hole, which defeated the 'no tools' promise. Once installed, it reads fine, but the physical design could be sturdier for tough soil.

D
David L.
Helpful data but tricky initial pairing

This has been a very helpful tool for managing my vegetable garden's hydration. Putting it in was literally just pushing the stake into the dirt—no wiring or digging required, which was a huge relief for me. Getting real-time data on my phone gives me peace of mind that my beds aren't completely drying out in the afternoon sun. I'm giving it four stars because getting it to pair initially took a couple of frustrating tries. Once it finally connected to the 8-zone controller, it hasn't dropped the signal once and sits flush with the dirt.

J
Joshua P.
Takes the guesswork out completely

Setup took less than five minutes. I paired it with my SoilDrops controller and pushed it right into the flower bed. The real-time moisture readings are super helpful. It really takes the guesswork out of keeping my delicate plants alive during the summer heat.

R
Ryan J.
No tools needed for installation

There were no wires or tools needed for this installation. I just stuck it directly in the garden bed and it started reading moisture immediately.

Questions

How many sensors do I need?

One for each zone you want measured. Start with the zones that matter most, like the lawn or a garden bed. Zones without a sensor keep running on their schedule, with the free weather skips.

Where should it go?

In the middle of the zone, where that zone's plants grow, about a third of the way out from the nearest sprinkler head. Stay away from edges, soggy low spots, paving and rocks.

What if it doesn't work out?

30-day money-back guarantee and a 1-year limited warranty. Call 888-427-6838 or email support@soildrops.com and a real person will help.

One sensor per zone. Readings free, forever.
Choose how many