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5 Best Soil pH Tester (2023 Edition)

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A healthy lawn, potted plant, or flowerbed requires the right environment for vigorous growth, including quality soil and nutrients.

This is where you need soil pH testers, which are used to measure the pH value, sunlight plant level, and soil moisture. They are paramount because they can help keep the houseplants or garden in tip-top shape by measuring a wide variety of moisture, nutrients, pH, and light.

Their instructions are very easy to understand and follow, making it possible for any new gardener with limited experience.

Some soil pH testers have patent-pending on the optical calibration system to read test colors and slight color variations. You will get the booklet that directs you on adjusting the soil pH and fertilizer recommendations according to your needs.

Likewise, there is detection technology, which can help to ensure more accurate and faster readings. These products come with a plastic carrying case that can ensure easy transport.

The readings are displayed on a large screen that can ensure an easy-to-read display. Besides, improved probes are more sensitive that means greater sensitivity to change in the soil and improved light detection receiver for more accurate results.

Those who want the best soil pH tester can continue reading this article.

Alkey 3 in 1 Soil pH Indoor Outdoor Tester - Best Soil pH Tester
Alkey 3 in 1 Soil pH Indoor Outdoor Tester via

Types of soil pH Testers

Chemical soil pH tester

It is used to determine the baseline nutrient level within the soil. Once enough data has been collected, recommendations can be made for cover crops, fertilizers and make the amendments.

This tester can be used used to determine the type of soil. Some plants need particular soil types to thrive, and timing is crucial when doing the tests, which is where this tester is applied.

Digital soil pH tester

The digital soil pH tester can be used to determine if you are at adequate, sufficient, deficient, depleted, or surplus for the three macronutrients, namely nitrogen, potassium, and phosphorus.

Also, many use it to test the average pH and determine the pH at extreme levels. This type of soil pH tester includes a plastic dropper, test tube dock, four test tubes, a proprietary digital soil test module, and the color-coded nutrient test capsules.

Analog soil pH tester

This soil pH tester uses about two to three metal probes when testing different aspects of soil. When you place the probes in the soil, a natural electrical energy register is stored between the probes so that these non-electronic devices can store various things.

Many analog testers can provide a rough estimate of the pH, the amount of sunlight received during the test, and the soil moisture. Some also test the general soil fertility.

Professional soil pH tester

The professional soil pH tester is an excellent option for those who do not want to skew the results. The soil sample is placed in a jar, provided, and sent to the laboratory in a sealed envelope for professional analysis. The results are then sent through email and can be found online.

Factors to Consider When Buying the Soil Ph Tester


It would be best if you look for a soil pH tester that is accurate. It is supposed to have a range when measuring within. Most of the soil pH testers can measure between 3.5 and 8, while some have a range, which is smaller or larger.

You need to carefully follow the instructions that come with the soil pH meter, as they can give you the right idea of how to get an accurate reading on the device.

For example, you may need to move the probes, keep them in the soil for a long time, or place them closer to the plant roots for best results.

Probe depth

The soil pH testers are designed in two ways: one or two probes. Typically, these probes are made of metal, such as silver, aluminum, metal amalgamation, or copper.

Although the type of metal is not very important for the accurate reading of the soil, the probe depth is essential. If the probe of the soil pH tester is more extended, it will be the best because it will offer the best content of the whole soil section.

Swiser Lightweight 3 in 1 Soil pH Tester - Best Soil pH Tester
Swiser Lightweight 3 in 1 Soil pH Tester via


The soil pH tester typically has one or two metal probes, measuring between 7 and 8 inches. Use the button below the adjustment dial to measure pH, moisture level, or light.

When you place the probes in the ground, the needle pointer will move to the numbered gauge on a dial screen to display the correct reading.


When buying the soil pH tester, a waterproof feature is very crucial. The reason being, the probes must penetrate the ground. If it is not waterproof, the probe can start to rust in the soil moisture. Besides, if the sensors are not of good quality, the testing can cause corrosion.


Electronic testers have rods and probes that are inserted into the ground. This can allow the device to measure the pH of the soil effectively. The device must make sure the probes are durable.

This is because you deep it into the soil. A lack of a well-built device can result in rods or probes damaged by soil elements like moisture.


Some critical tests must be done to check the quality of the soil. This includes the sunlight levels and soil moisture levels.

A soil pH tester, which can measure the level of sunlight and soil moisture, is the bonus. Make sure your tester is 3-in-1 to check the soil conveniently.

You need to have a device that can perform all three tests instead of having one device for every test.

Number of Tests

Many soil pH testers offer several individual tests, usually a fixed number for each test. You are required to be careful when buying the tester to make sure you have sufficient tests for your requirements.

Many of these products also offer different size options, so you can buy them in bulk if need be. And you may want to ensure you buy the replacement products.

For instance, you can test an element more than others, and you will need to ensure you buy tests individually to correct the differences in tests.


It would be best if you look for the soil pH tester, which is compact and lightweight. This will make it convenient to carry around and use in all types of weather.

Soil pH tester probes can be sensitive, though you may want a device that offers the best performance on your investment.

Power source

Most of today’s soil pH testers are battery-free, so you can test the soil without connecting in AAA or AA batteries. However, there is some sold that require batteries.

At the same time, the tests are battery-operated and more accurate. In the absence of scientific evidence on this issue, the jury is not yet present.


Regardless of how good the soil pH tester is, it can fail sooner or later, but you can extend its life with proper maintenance and care. Typically, testers come with manuals, which describe who to maintain the device.

According to some general rules of the probes, clean it immediately after use, do not leave it on the ground for a long time, and keep it away from destructive substances. Depending on the product, the probe may need to be replaced.

Best soil pH Tester Listing

1.  CFORM 3-in-1 Soil pH Tester

CFORM 3 in 1 Soil pH Tester Best soil pH Tester Listing


You can now test the pH value, sunlight plant level, and soil moisture with this product from CFORM. It is 3-in-1, where it helps you specialize in looking when you want to water the plant.

There is the double-needle measurement, which can help accurately and scientifically measure the pH value and moisture of the vegetation and detect changes in the soil.

It is easy to operate since no batteries are needed because you only insert the sensor into the soil for about 2-4 inches, then wait ten seconds to read intuitive data.

This can be quick and convenient, making it an ideal tool for gardening and planting. Likewise, it has excellent accuracy in controlling the acidic, alkaline, or pH level in the soil suitable for the plants.

This tester is lightweight and portable, making it easy to carry around during outdoor use like home plants, lawn, garden, and farm.

It can help you determine if the plants are getting adequate light. Also, you can use it to identify whether you want to hold back or add water for some days.

  • Offer sensitive probe and accurate measurement
  • Easy to operate
  • Ensure reliable data for indoor and outdoor garden
  • Has fast detection
  • Easy to read
  • Determine if the plants get adequate light
  • Help control acidic or alkaline level
  • Easy to use
  • It is durable
  • Shows relative intensity
  • It is 3-in-1 multi-function
  • Stones can damage it

2.  Alkey 3-in-1 Soil pH Indoor & Outdoor Tester

Alkey 3 in 1 Soil pH Indoor Outdoor Tester Best soil pH Tester Listing


If you want to accurately grasp a good amount of water and time when watering your plants, go for this model from Alkey.

It comes with a double-needle detection technology, which can significantly improve the accuracy and speed of analyzing and detecting pH acidity and soil moisture.

The product is a 3-in-1 multi-function where it can help to test the sunlight level, pH value, and soil moisture of plants.

Thanks to two high-precision probes, which can detect the pH level and moisture value, scientific data monitoring determines if the plants get sufficient sunlight to keep them grow healthier.

It is portable where you can carry and use it easily. This is because no batteries are required, for you only need to insert a sensor probe to about 2 to 4 inches of the soil and then flip the switch to acquire the test results.

It has a clear and large dial, including plug, ten graduations, and read, which can ensure accurate data. There is a push switch that can position moist, pH, or light according to your needs.

What is more, it has a wide application, making it suitable for rice planting, home garden breeding, vegetable planting, succulent soil, forest planting, potted plants, greenhouse planting, and more. 

  • It is fast and reliable
  • Easy to carry and use
  • It is 3-in-1 multi-function
  • Help to detect pH and moisture value
  • It has a wide application
  • Easy to read
  • It is sturdy
  • Cheap and large
  • Perfect for beginners
  • It has good quality
  • It is not very accurate

3.  Mosthink Soil 3-in-1 pH Light Tester

Mosthink Soil 3 in 1 pH Light Tester Best soil pH Tester Listing


Do you want a model that has a larger screen to make it easier to read the value? Then you can go for this model.

It has a 3-in-1 function to test the soil moisture, sunlight plants level, and soil pH value. The double needle can enhance the accuracy and speed of soil pH and moisture you need to know.

It is easy to use because you only need to insert a sensor probe to the soil between 2 and 4 inches and toggle the switch to test the pH, sunlight, and moisture you want to measure.

After that, wait for about 5 and 10 minutes until the pointer stop swinging gets the stable reading on a scale dial. Equally important, it is easy to carry anywhere you want to go.

The product can help control the soil pH level by checking if the soil is alkaline or acidic to ensure it is ideal for the plants living.

It comes with a dimension of 11 x 2.4 x 1.3 inches and a copper probe diameter of 0.2 inches. Thanks to the unique feature that can help you determine how much and when to water the plant.

  • Ideal for outdoor and indoor use
  • Easy to carry
  • A larger screen ensures more accuracy
  • No batteries needed
  • Lightweight and compact
  • Easy to set up
  • Very affordable price
  • Reliable and precise readings
  • Double sensor design
  • It is high quality
  • 3-in-1 functionality
  • It cannot be used to test liquid

4.  Sonkir MS09 3-in-1 Soil pH Indoor Outdoor Tester

Sonkir MS09 3 in 1 Soil pH Indoor Outdoor Tester Best soil pH Tester Listing


The Sonkir product is crucial because it can assist you in tracking all changes and control every detail about the plants.

It keeps the plants in a healthy condition with the help of scientific data monitoring. There is a 3-in-1 function design that can help test the soil pH value, sunlight level, and moisture of the plant.

I appreciate the double-needle detection technology because it enormously enhances the accuracy and speed of analyzing and detecting soil pH acidity and moisture.

It is easy to use because no batteries are needed; you only need to insert a sensor probe in the soil to about 2 to 4 inches. Then toggle the switch to test pH, moisture, sunlight you may want to measure.

The model is designed to be portable, lightweight, and easy to carry for outdoor use, making it ideal for home plants, lawn, garden, and farm.

It has a copper probe diameter of 0.2 inches and the aluminum probe diameter of 0.2 inches. More importantly, it can help you know whether there is adequate sunlight to create a splendid and nourishing environment for the flora to grow.

  • It is reliable and accurate
  • Easy to use
  • Lightweight and portable
  • Best for indoor and outdoor use
  • No batteries needed
  • Easy to carry
  • Help to test soil pH, moisture, and sunlight level
  • Sturdy dual aluminum probes
  • Easy to read
  • It is more accurate
  • It can be damaged by hard soil

5.  Swiser Lightweight 3-in-1 Soil pH Tester

Swiser Lightweight 3 in 1 Soil pH Tester Best soil pH Tester Listing


The product is paramount because it can help you control PH level, know whether the plants are getting adequate sunlight and water.

I really appreciate the premium double-needle detection technology, which can enormously enhance the accuracy and speed of analyzing and detecting soil pH acidity and moisture. There is a unique feature that healthily promotes plant growth.

It has 3-in-1 functionality that can help test the plant’s soil pH value, sunlight, and moisture level.

This helps you specialize in knowing when you are required to water the plant, get adequate sunlight, and control the soil pH value. It is eco-friendly because it does not require electricity or any battery.

The product is portable and lightweight, making it easy to carry during outdoor use, making it ideal for home plants, lawns, farms, and gardens.

It is outstanding because it can help to maintain and ensure the quality and health of the greenery. Also, it has a dimension of 10.2 x 2.3 x 1.5 inches and weighs 2 oz.

  • Accurate and reliable
  • It is environmentally friendly
  • 3-in-1 functionality
  • Promote plant growth
  • Lightweight and portable
  • Ideal for indoor and outdoor use
  • Easy to carry
  • No battery needed
  • Easy to use
  • It has high quality
  • There is a quality control problem
  • Probes can be damaged in rocky soil


The soil pH testers are essential for plants to reach their full potential. They are available to get accurate results, especially when treating the soil with the correct pH.

The unique thing is that they provide a professional soil assessment that requires very little work from the soil collector.

Besides, they eliminate user error because you only need to collect the soil and submit it instead of independently reading the measurements or results. Go for the above products because they have outstanding features.

The best-selling one is Alkey 3-in-1 Soil pH Indoor & Outdoor Tester Kits because it is versatile where it can help test the sunlight level, pH value, and soil moisture.

Likewise, it is portable where you can carry it from one place to another easily. This product has achieved the above factors because it is versatile to test different values and is portable, making it easy to carry around.