5 Best Soil Moisture Meters for Plants | Honest Reviews & Buying Guide

Walts DIY is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you.

Soil moisture meters can become your new best friend. They can save you a lot of work and overtime will pay for themselves in saved water! Gardening is one of the most popular pastimes today. Walk into any garden store, and there’s a vast array of exotic plants to buy – both for indoors and outdoors – each with their instruction manual and care plan!

Watering the garden can often be a chore, especially after a long day at work it’s the last thing you want to do! But do you need to? There’s a tool you can buy called a soil moisture meter, and it does precisely that; it tells you when to water the plants.

Professional agriculture workers have been using these for years, and they’re now available to the general public, and there’s a lot to choose from. Not only do you need one, but you need a reliable one. Otherwise, there’s no point in using it.

Our best advice is to buy a high-quality soil moisture meter from the outset to give your plants the best chance of growing healthier and living longer. We know soil moisture sensors aren’t the most exciting things to research, and a lot of people will blind you with science so, we’ve put together this comprehensive, easy-to-read buyers guide to help you make your decision.

Here’s a quick guide about what we cover in this best soil moisture meters article:

  • First, we compare our top 5 picks in an easy-to-follow comparison table.  Perfect if you have little time.
  • Next, we reveal each model’s best features and benefits you’ll find useful
  • Then, we tell you about their drawbacks we think you should know about
  • And finally, our buying guide will give you greater insight into the product range

Sound good? Let’s begin!

Buy on Amazon

Comparison of Our Favorite Soil Moisture Meters:

CLICK any image to see Ratings & Reviews on Amazon

5 Best Soil Moisture Meters | Reviews


Pros & Cons

  • Huge range of sizes
  • Durable
  • Accurate
  • Can be calibrated for specific plants
  • Expensive


Pros & Cons

  • Indoor & outdoor use
  • Gentle on plant roots
  • Guide included
  • Affordable
  • Accurate
  • Can’t be left in the soil for long periods


Pros & Cons

  • Ready to use
  • Tests sunlight, pH, and moisture levels
  • Flimsy
  • Inaccurate


Pros & Cons

  • Cheap
  • 1-year warranty
  • 24-hr customer service (you’ll need it!)
  • Not reliable
  • Inaccurate pH measurements


Pros & Cons

  • All in one kit
  • Readings take forever
  • Not accurate
  • Soft soil only
  • Flimsy

Video: How to Use a Soil Moisture Meter

Buy on Amazon

Best Soil Moisture Meter Buyers’ Guide

We discovered many options when purchasing a soil moisture meter and reader, so we have compiled this short guide on what to look for.


We have reviewed meters that either need a battery or not, and there are pros and cons to either. Battery-operated models will be quicker to provide readings, which will help you if you have many plants. However, they will be more expensive to purchase and maintain though. If opting for a non-battery-operated model, then one that only reads soil moisture level is best.

Buy on Amazon

Moisture / Sunlight / pH?

Many products on the market will measure more than just the moisture in the soil, which comes with its problems. We found it took a long time for the device to give readings on all 3, and some were just inaccurate, especially the pH measurement.

Our advice is to ask yourself what you need it for? Most people want to know the moisture level in their soil, so buying a device specifically for that purpose seems best. A device that measures pH and sunlight is hit and miss for accuracy, especially at the entry-level price point, and so you’ll need to decide if they’re that important to you.


We tested all of the models ‘plug and play’ and don’t require you to have any technical knowledge. The instructions were clear to read and understand.

See Full Range on Amazon


You don’t need to spend a fortune to get accurate and reliable moisture readings. However, you will have to pay a bit more to get fast and responsive pH level readings though, but it depends on your situation whether that’s entirely necessary. 

For example, if you’re a farmer whose livelihood depends on it, then spending more to get a better piece of kit seems sensible—if, like us, you’re a keen gardener, then choosing a soil moisture meter that has all the options you need within your budget is best.

Soil Moisture Meters Bottom Line

We tested 5 of the best soil moisture meters currently on the market and found pros and cons with all of them. While making a purchasing decision can be complicated, we’ve narrowed it down to our two best picks.

If you want just a moisture meter and nothing else, Reotemp Garden and Compost Soil Moisture Meter are your best choice. It’s built to last and gives quick and accurate results.

A close second is Dr. Meter Soil Moisture Sensor Meter, as its price point, coupled with its accuracy, means it gets our Best Value medal.

Having read this article, the great news is that you’re now in a much stronger position to decide on which soil moisture meter is suitable for you and your gardening needs.

Here are some other articles you may like:

Best Rat Poison for the Money 2020

Power Rake vs. Dethatcher: Which One Do You Need?

5 Best Electric Leaf Mulchers – Review and Buyers Guide

Here are our favorite garden backpack sprayers

CLICK any image to see Ratings & Reviews on Amazon

Walter Snyder