EASY TO READ & BATTERY NOT NEEDED: The Soil Moisture Meter with single probe wouldn't need battery to work. There's a tricolor dial area with clear dial and ten scales of our Soil Moisture Tester, which makes it easy to read.Red (1-3) DRY, Green (4-7) SUITABLE, Blue (8-10) WET. The plant moisture meter helps the plants grow healthy and make planting easy. NEW PROBE, MORE SENSITIVE, PRECISE AND SAFE: The upgraded moisture tester is more durable and the probe is not easy to fall off or break off. The round tip can add more contact with the soil, which makes the test more accurate, meanwhile, it would be safer to use it. Please don not insert the plant soil moisture tester into the soil for a long time, or into water. EXTREMELY ACCURATE ANDPRECISE４he Soil Tester makes advantage of different conductivity of 2 metals at the tip of the probe. Because water is a better conductor, so the more moisture in the soil, the greater the conductivity is. Throug this way, our Plant Water Meter Soil Meter relies on durable indicators, not batteries. Because it uses a mechanical device based on conductivity difference, the plant moisture meter is very accurate and precise. A MUST HAVE FOR INDOOR AND OUTDOOR PLANTS: Our soil water meter is not only perfect for gardeners or who takes care of indoor or outdoor plants but also itҳ very useful in landscape irrigation, agriculture, and even research. Since every plant has different humidity requirements, it is important not to over-water the soil or let is get too dry. No more guess in how much water your plants need. 12 MONTHS WARRANTY & GOOD AFTER-SALES SERVICE: We offer 12 MONTHS WARRANTY on the soil moisture meter from the day you purchase. For any product questions, you can contact us per email. All of your questions or emails will be respond in 24 hours. the packing box includes 1 x Soil moisture meter, 1 x Cleaning Cloth, 10 x Lables２andom Color＼/span>