Cut the guess work altogether and make your plants much happier. You will know what your plant need when and why; your plants will be healthier and growing. | 3 in 1 design (Moisture/pH/Light Tester) provides you a comprehensive idea about the soil condition of your garden and lawn. With a quick check, you can tell if you need to adjust the plant food/water and if your plants get enough sunlight. | No batteries or electricity needed, ready to use out of box. Plug and read, making gardening easier than ever. | Compact and portable for indoor/outdoor use. A necessity for anyone who gardens or has houseplants, it will come in handy whenever you grow an interest in gardening. | 100% SATISFACTION GUARANTEE: We take pride in delivering top quality products and offering our friendly 12 Months Warranty PLUS 30 days money back guarantee for any reason. You can contact us through clicking "Sold by Garden Tools Direct" on the product detail page or your Amazon order page and you will be directed to "Ask a question" to send us message.