Easy & Accurate Digital Soil Test Kit – Luster Leaf Rapitest

Quick, precise, and reliable soil testing for healthier gardens.

The Luster Leaf Rapitest Digital Soil Test Kit takes the guesswork out of soil health by providing fast, accurate readings of your soil’s pH, nitrogen (N), phosphorus (P), and potassium (K) levels. Perfect for home gardeners and professionals alike, this kit uses a patented optical test chamber for precision—eliminating the subjective color matching required in traditional soil tests.

With easy-to-use color-coded tubes, reagent capsules, and a comprehensive guide for over 450 plants, this kit makes it simple to test, interpret, and amend your soil for optimal plant growth.

Key Features

• Digital LED display – Fast, accurate results at a glance

• 4-in-1 testing – Measures soil pH, nitrogen, phosphorus, and potassium (NPK)

• Patented optical test chamber – Ensures precise color recognition for accuracy

• No subjective color matching – Removes guesswork from soil testing

• Complete kit – Includes 25 reagent capsules + 4 color-coded test tubes

• Comprehensive plant guide – Fertilization and pH preferences for 450+ plants

• Convenient storage – Test tube holder keeps everything organized

• Battery-powered – Portable and easy to use anywhere

Why Gardeners & Growers Love It

• ✅ Accurate soil analysis – Know exactly what your plants need

• ✅ Time-saving – Quick digital results without lab delays

• ✅ Practical guidance – Adjust soil amendments with confidence using the included reference chart

• ✅ Versatile use – Great for lawns, vegetables, flowers, shrubs, and houseplants

How It Helps Your Garden

By measuring your soil’s pH and nutrient balance, you can:

• Improve soil fertility with targeted amendments

• Maximize vegetable yields and flower blooms

• Prevent over-fertilization and nutrient deficiencies