Is this kit for a one-and-done test? If so, where and how much are refills for this product?

This test has several capsules for each test you want to run. My soil was really depleted. So I tested the first time to see what it needed, and then added those nutrients, and a week later tested again. I used the recommendations on the instructions to "fix" the soil, and it worked really well. The kit is easy to us. Read the FULL INSTRUCTIONS on the inside. The short version does not work. It will take a few hours or even days for some, because you have to put the soil in "purified" water, and let the soil settle to the bottom and the liquid become as clear as possible. I bought these on Amazon and if I remember right paid less than $10 for the complete kit. It was cheaper that way. I love these tests. Hope this was helpful.

can you use it for several seasons.. or do the chemicals go bad once opened to the air?

The chemicals are in capsules. I used mine throughout the season last year on multiple foot plots around our property. Each variety of capsule is in its own sealable baggie also. You should be good as long as you keep them away from open moisture.

how many capsules do you get and how easy are they to find?

There were 10 capsules for each test, easy to do, and fairly accurate I think. I'm a science teacher and have used this type of test before. They were color coded and in separate bags.

Can i get spare capsules for the tester on amazon?

If you want to test across multiple seasons, look for "Luster Leaf 1880 Rapitest Tester Electronic 4-Way Analyzer, Soil". The meter can be used over and over without regard to having any chemical capsules to use.

Luster Leaf 1602 Soil Kit 20 Tests

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Description

🌿 Unlock your garden’s hidden potential—test, tailor, and triumph!

COMPREHENSIVE 20 TEST KIT - Get 5 tests each for pH, Nitrogen, Phosphorus, and Potash—cover every inch of your garden with confidence.
COST EFFECTIVE CONVENIENT - All-in-one kit with everything you need for 20 tests—save time and money while achieving professional-grade results at home.
INNOVATIVE COLOR COMPARATOR - Patented system ensures quick, accurate readings without guesswork—no more second-guessing your soil health.
OPTIMIZE YOUR GARDENS POTENTIAL - Tailor fertilization and amendments precisely to your soil’s needs—watch your plants thrive like never before.
USER FRIENDLY FOR ALL SKILL LEVELS - Clear, detailed instructions and a plant pH preference list for 450+ species make testing effortless for beginners and pros alike.

The Luster Leaf 1602 Soil Kit offers 20 reliable tests for soil pH, Nitrogen, Phosphorus, and Potash using an innovative capsule system and patented color comparator. Designed for both beginners and experienced gardeners, it includes detailed instructions and a plant pH preference guide for over 450 plants, enabling precise soil amendments to maximize garden health and yield.

Specifications

ASIN	B01HQXF0PS
Brand Name	Luster Leaf
Customer Reviews	4.1 4.1 out of 5 stars (2,173)
Global Trade Identification Number	00035307016027
Item Type Name	Soil Test Kit
Manufacturer	Luster Leaf
Manufacturer Part Number	1602
Model Number	1602
Style Name	Soil Test Kit
UPC	035307016027
Unit Count	20 Count

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TrustScore 4.5 | 7,300+ reviews

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Luster Leaf 1602 Soil Kit, 20 Tests

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