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Luster Leaf

Rapitest Soil Test Kit for Gardens, Vegetables, Flowers and Lawns. USA designed and assembled soil tester completely, quickly and accurately measures/analyzes soil pH acidity and garden nutrients

  • Based on 3,111 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Aug 3
Order within 12 hours and 20 minutes
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Style: Digital Soil Test Kit


Size: 25 Tests


Features

  • Reads test colors utilizing advanced LED digital technology
  • Just push test button to get results in a few seconds
  • Includes pH preferences for over 450 plants and how to adjust soil pH
  • Booklet has fertilizer guidelines based on nitrogen, phosphorus and potash test results.
  • Performs 25 tests: 10 for pH and 5 each for Nitrogen, Phosphorus and Potash

Description

Electronic version of Luster Leaf’s popular 1601 Soil Test Kit. The rapitest Digital Soil Tester utilizes advanced LED digital technology and patent- pending optical calibration system to read test colors. The system is calibrated to read small color variations that can be difficult to distinguish with the human eye. The tester is easy to use. Just follow the easy instructions for each soil pH, nitrogen, phosphorus or potash tests; slide the test tube in optical chamber and push the appropriate button to get the test results. Once you have your soil test results, the tester booklet tells you how to adjust soil pH and provides recommendations for fertilizers. The booklet’s pH preference list allows you to select plants for your soil’s pH or know how much to adjust the soil pH for your current plants.

Brand: Luster Leaf


Recommended Uses For Product: Gardening, Agriculture


Unit Count: 1.0 Count


Manufacturer: Luster Leaf


UPC:


Product Dimensions: 1.54 x 5.83 x 12.2 inches


Item Weight: 7.4 ounces


Manufacturer: Luster Leaf


Country of Origin: China


Item model number: 1605


Batteries: 1 Product Specific batteries required. (included)


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 3

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.

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Top Amazon Reviews

    • Soil test kit. Not sure if this will give accurate results, but so far so good 👍🏾!
Style: Soil Test Kit Size: 20 Tests
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
Review Image by Melanie Seard Melanie Seard
I just received this product today, so I can't speak on effectiveness or quality but I will speak on my first impressions of this specific product, what it contains and explain how it works. I bought it fearing that my homemade chunky soil mix was lacking sufficient nutrients and because I can't afford an expensive comprehensive lab test, and because this one has fairly decent reviews, I decided to try it out. In this kit has 4 test component: 1. Acidity test (pH test) 2. Phosphorus test (P Test) 3. Nitrogen test (N Test) 4. Potash (K test) Each test is color coded and is accompanied by a pill that's color coded as well. The directions are very clear and detailed, but the pH test is the only test that gives it's results rapidly, you h to wait 24 hours (it's explains why in the instructions) My I don't have a proper pH tester so I can't speak on it's effectiveness but the results were indeed "rapid" 🤷🏾♀️ I will update after use thorough use ... show more
Reviewed in the United States on July 2, 2025 by Melanie Seard Melanie Seard
    • Easy to use soil testing
Style: Soil Test Kit Size: 20 Tests
Great product for making sure you know what nutrients your soils needs. The instructions were clear and simple. There are times when the test results may not match an exact color on the test window but you are really looking for a range result anyway. Overall, it was a great product for ensuring our trees and garden are properly cared for. ... show more
Reviewed in the United States on June 1, 2025 by Brittani
    • It works
Style: Soil Test Kit Size: 20 Tests
Review Image by Tim Tim
Was having issues with my tomato plants. The leaves were curling up. Bought this test to see if the nutrients were off. It was fairly simple to use. The instructions were a little confusing at first, but once you read them all, it’s pretty easy. “20 tests” was a little misleading. I thought it meant “20 of each 4 types” but this was not the case. What it’s actually saying is “5 tests of each of the 4 types” but other than that, it worked as expected. ... show more
Reviewed in the United States on April 26, 2025 by Tim Tim
    • Accurate for npk ph
Style: Soil Test Kit Size: 20 Tests
Works great. I do think they should provide a few more capsules as 2 if mine were very hard to open, like the casing got wet or hot and stuck together so I couldn't get them open without it crushing the casing and wasting half of the powder. I have small fruit trees and you can't fertilize until you test the soil because a little too much of anything can mess them up for a year or 2. Worked great at giving me npk and ph of the areas I needed to test. I do believe they are accurate. My son in law goes to school for horticulture and he tested my soil 10 months ago at school, it's a very professional test. This set showed pretty much the same results so I know it's accurate. ... show more
Reviewed in the United States on July 27, 2025 by Franjam
    • Easy to follow instructions
Style: Soil Test Kit Size: 20 Tests
The directions were easy to follow. I was able to figure out what was wrong with my backyard and what was needed to add to improve my lawn.
Reviewed in the United States on July 15, 2025 by Kelli
    • Did not work
Style: Soil Test Kit Size: 20 Tests
Review Image by R L B - Midlothian R L B - Midlothian
Product did not work properly. Initial soil test showed total depletion of tested nutrients. I then ran a control test using Scott’s liquid fertilizer (12-4-8) properly diluted. You can see the results in the photo. Nitrogen barely registered and potash and phosphorus didn’t register at all. Product did not work. Returned. ... show more
Reviewed in the United States on July 24, 2025 by R L B - Midlothian R L B - Midlothian
    • Appears to work
Style: Soil Test Kit Size: 20 Tests
Review Image by JJ JJ
Works perfectly. Wanted to verify the acidity of my soil, but chose to buy this pack which would provide me with even more data! Haven’t used the others yet Enough materials for 5 tests of each component! Great bargain and a very helpful product
Reviewed in the United States on May 31, 2025 by JJ JJ
    • Soil test kit
Style: Soil Test Kit Size: 20 Tests
If you wonder what the soil tests out at this is the kit. Highly recommended.
Reviewed in the United States on July 27, 2025 by Michael Morgan

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