Choose the gardening task
Use the exact product listing to compare the intended task, fitting and included components. Product capabilities are specific to the chosen model.
$35.99
Free standard US shipping
Contiguous 48 states & DC · 4–7 business days total
30-day returns
Merchant-paid return shipping. Read the policy
Questions about this item? [email protected]
Product brand: Bootstrap Farmer
The details
Easy & Accurate Digital Soil Test Kit
Take the guesswork out of soil health with the Luster Leaf Rapitest Digital Soil Test Kit. Designed for home gardeners and professionals, this kit provides quick, precise digital readings of your soil’s pH, nitrogen (N), phosphorus (P), and potassium (K) levels. The patented optical test chamber ensures accuracy, eliminating the need for subjective color matching. With easy-to-use color-coded test tubes and capsules, plus a comprehensive reference chart for over 450 plants, this kit simplifies soil testing and helps you make informed amendments for optimal plant growth.
Key Features
Digital LED readout for fast, accurate results
Tests for pH, nitrogen (N), phosphorus (P), and potassium (K)
Optical test chamber ensures precise color recognition
No subjective color matching—improves accuracy
Includes 25 reagent capsules and (4) color-coded test tubes
Fertilization guidelines and pH preferences for over 450 plants
Test tube holder for easy organization during testing
Battery-operated for convenient, portable use
How to Use Soil Test Kit
Precision Soil Testing for Healthier Plants
Quickly and easily measure your soil’s nutrient levels to ensure your plants receive the proper balance of nutrients for optimal growth. The digital LED display eliminates guesswork, giving you fast and reliable results. The included guide provides expert recommendations for adjusting pH and fertilization levels based on your test results. Once you have your soil test results, learn how to improve your garden’s fertility with
A Beginner's Guide to the Best Soil Amendments for Healthier Gardens
.

Know the fit
For a measurement or material that is not stated on this listing, contact us with the SKU before ordering.
Choose & use with care
Use the exact product listing to compare the intended task, fitting and included components. Product capabilities are specific to the chosen model.
Compare the listed dimensions, capacity and actual option labels with your available space or equipment before ordering.
Use the care and handling directions supplied for the selected product. Contact our team with the SKU if a detail is not stated.
Follow the instructions supplied for the exact product. Features, limits and care directions are specific to the selected model.
Order preparation takes 1–3 business days, followed by 3–4 business days in transit: 4–7 business days in total. Standard shipping is free to the contiguous United States and DC, with no minimum order.
Request a return within 30 calendar days after delivery. We pay return shipping. After receipt, inspection and initiation of an approved refund take 5–7 business days.
Before you decide
Choose the gardening task. Read the actual item description, included parts and options. The collection contains different models; a feature stated for one item should not be assumed for every product.
Check reach and capacity. Compare the dimensions and compatibility stated for the selected item with the space or equipment you intend to use. If a required measurement is absent, send the product name or SKU to [email protected] before purchasing.
Available choices are shown on the individual product page. Select the actual option labels before adding a variable product to your cart. Photos and specifications should be read together with that choice; availability is specific to the selected configuration.
Read the care notes. Follow the instructions supplied for the exact model. Do not assume that all items have the same materials, installation method, care directions or intended use.