--- product_id: 120042020 title: "Kelway PHD Soil PH Meter (Pack of 3)" brand: "kelway" price: "Rp10434273" currency: IDR in_stock: true reviews_count: 7 url: https://www.desertcart.id/products/120042020-kelway-phd-soil-ph-meter-pack-of-3 store_origin: ID region: Indonesia --- # Kelway PHD Soil PH Meter (Pack of 3) **Brand:** kelway **Price:** Rp10434273 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Kelway PHD Soil PH Meter (Pack of 3) by kelway - **How much does it cost?** Rp10434273 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/120042020-kelway-phd-soil-ph-meter-pack-of-3) ## Best For - kelway enthusiasts ## Why This Product - Trusted kelway brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Used by professional lawn care companies and nurseries, the Soil pH Meter is wonderful for serious gardeners who want to check the pH level in their garden. This Soil pH Meter is simple and easy to use. Test your soil with accuracy and ease to determine if you need to adjust soil acidity. The pH scale ranging from 0 to 14 is used to indicate acidity and alkalinity. A pH of 7.0 is neutral, values below 7.0 are acid, and those above are alkaline. The lower the pH, the more acid is the soil. The higher the pH, the more alkaline. The pH values of some common items are: Pure water, 7.0: Lemon juice, 2.2 to 2.4, orange juice, 3.4 to 4.0, fresh milk, 6.3 to 6.6, mild soap solution, 8.5 to 10.0, most Ontario soils, 4.5 to 8.0. To test and regulate the pH of your soil employ the Kelway Soil pH Meter . PACK OF 3. ## Features - Hand held size Requires no power source or distilled water Helps ensure healthy lawns and gardens Easy to operate. Includes full instructions 3 pack ## Images ![Kelway PHD Soil PH Meter (Pack of 3) - Image 1](https://m.media-amazon.com/images/I/51ax+tpD07L.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Customer Reviews ### ⭐ This soil pH meter has NO accuracy *by B***C on Reviewed in the United States on September 8, 2017* This soil pH meter is wildly inaccurate. If you are trying to adjust your soil pH based on this meter, you will be led completely astray. I researched this meter before buying it, and as a result purchased a pack of the "conditioning films" and a calibration solution test kit from Atlas Scientific with the same order. I read all instructions and followed them precisely. I even used separate conditioning films on each of the two metal rings to insure there was no metallic cross-contamination between the rings. When reading the meter, I interpolated between the 0.2pH scale markings to make readings with a "resolution" of 0.05pH.First test: When placed in the 4.0pH calibration solution, the Kelway meter read 5.20pH. Hunh.The Kelway instructions state, "Use when the soil is damp. No current can flow in soil that is very dry." and "Press the soil tightly against the metal rings." Clearly, the Kelway meter is not intended to be used in fluid samples. I thought perhaps the meter would not work accurately in a completely fluid solution.So, I took a large soil sample and "homogenized" it as thoroughly as possible. I placed a measured amount of this sample in each of three clean glasses. To sample A, I added a measured amount of distilled water. To make sample B acidic, I added an equal measured amount of the 4.0pH calibration solution. I then mixed a solution of powdered dolomite limestone and distilled water. To make sample C alkaline, I added an equal measured amount of this solution. I then measured all three samples with the Kelway meter, taking readings on 1 minute intervals. A subset of the readings taken in this second test is shown below:1 min: A - 6.40pH, B - 6.30pH, C - 6.60pH.3 min: A - 6.50pH, B - 6.50pH, C - 6.70pH.6 min: A - 6.60pH, B - 6.60pH, C - 6.75pH.These readings left me with no confidence in the accuracy of the Kelway meter, so I ordered a Rozway Digital pH Meter. This meter is provided with packets of powder that allow you to mix calibration solutions of 4.01pH, 6.86pH and 9.18pH. The instructions call for the use of deionized water in these solutions. I had only distilled water available, which is not the same thing, so my calibration of the Rozway meter may not have been fully accurate.When placed in the Atlas Scientific 4.0pH calibration solution, the Rozway meter read 3.86pH. Hunh. Not the specified +/-0.01pH accuracy.I then mixed the three Rozway calibration solutions and performed the calibration procedure. After calibration, the three solutions read: 4.01pH, 6.91pH and 9.04pH. Two of these readings are outside the specified accuracy of +/-0.01pH, but that may be my fault due to the use of distilled water. After calibration, the Atlas Scientific 4.0pH test solution read 3.91pH. I then tested the three Rozway solutions with the Kelway meter and measured 5.10pH, 5.15pH and 5.40pH.The instructions for the Rozway meter speak of "immersing the electrode into the solution". Obviously, the Rozway meter is not expected to work with soil that is merely damp, as is specified for the Kelway meter. So I added two more measured quantities of the specified fluids to each of the soil samples described above. This turned them into slurries. I made measurements in this third test by stirring the slurries and inserting the meters (I tested both, individually) before the solids settled out.The Rozway meter read: A - 6.82pH, B - 5.95pH, C - 7.32pH.The Kelway meter read: 1 min: A - 7.00pH, B - 6.60pH, C - 7.05pH.In truth, I had expected a wider range of pH readings among the three samples. However, I do have confidence that the Rozway meter readings are accurate to perhaps +/-0.1pH. At best, I would place the accuracy of the Kelway meter at +/-1.5pH. Clearly, the readings obtained from the Kelway meter are more dependent upon the "fluidity" of the sample and the "settling time" allowed, than they are on the true pH of the soil sample. The pH of soil sample A should not have changed between the second test (one measured quantity of distilled water) and the third test (three measured quantities of distilled water). Yet the Kelway reading changed from 6.40pH to 7.00pH. In the second test, the Kelway reading for sample A changed from 6.40pH at 1 minute to 6.50pH at 3 minutes to 6.60pH at 6 minutes. The pH of the three soil samples (Rozway readings) was: A - 6.82pH, B - 5.95pH, C - 7.32pH, a span of 1.37pH. The pH measured by the Kelway meter (3 minutes, second test) was: A - 6.50pH, B - 6.50pH, C - 6.70pH, a span of 0.20pH. The pH measured by the Kelway meter (1 minute, third test) was: A - 7.00pH, B - 6.60pH, C - 7.05pH, a span of 0.45pH. To re-state my conclusion: the readings obtained from the Kelway meter clearly are more dependent upon the "fluidity" of the sample and the "settling time" allowed, than they are on the true pH of the soil sample. I have absolutely ZERO confidence in the accuracy of readings made with the Kelway meter. ### ⭐ Doesn't work reading way off. Replacement the same... *by A***R on Reviewed in the United States on February 13, 2021* No label "made is Japan" as on picture. I assumed those are not made in Japan anymore...5 years ago I had a good experience with this PH testes, but now it's just expensive peace of junk...The first PH tested doesn't work at all see the collaboration reading below...OK, maybe I got unlucky and I ordered replacement... It came 2 days letter and reading was better but still way off: For 4.01 I am getting 6.0 after 5 min waiting as instructed... I am returning both of them.. DON'T buy this PHI am getting better result with cheaper 11$ PH reader....On picture: on the left : replacement item, on the right : original...Reference solution: 250 ml distilled water at 25C + reference 4.01PHFirst picture reading 30 seconds..Second picture reading after 5 minutes...Testing original PH device with:Distilled water : 7.0 as expected.Distilled water + 4.1 PH reference solutions (250ml) 25C -> 6.5 (Expecting 4.1PH)Distilled water + 6.9 PH reference solutions (250ml) 25C -> 6.9 (Expecting 6.9PH)Distilled water + backing soda, expected to be alkaline around 7.0PH -> 6.5Conclusion: doesn't work at all'Returning... ### ⭐⭐⭐⭐⭐ Good gardener's tool *by D***N on Reviewed in the United States on July 9, 2014* We started raising blueberries. They and several other plants we grow, such as hollies, need a fairly accurate pH. This is a clever design, using the acid in the soil to make a small electric current which is converted by the unit into the pH reading. It is easy to keep the bi-metallic point clean. (Putting two dissimilar metals in an acid produces electricity.) The reading takes only a few seconds to finalize. Be advised that the reading will not be accurate until the soil has warmed up in the spring. Also the soil must have some moisture in it to produce the reading. This meter is not designed to work in alkaline soils. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/120042020-kelway-phd-soil-ph-meter-pack-of-3](https://www.desertcart.id/products/120042020-kelway-phd-soil-ph-meter-pack-of-3) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-04-27*