3 IN 1 FUNCTIONS The soil moisture sensor can measure soil moisture, pH value and sunlight intensity. It can quickly help you focus on when to water your plants, check the pH in the soil, and see if they are getting enough sunlight. EASY TO USE No batteries required, plug and play. Probe length about 17cm, just insert soil moisture tester into the measured land (about 2-4inch) to get accurate and precise data. If the soil is very dry, the soil indicator will not swing, it means your plant needs water. SCIENTIFICALLY ACCURATEPremium double-needle sensing technology improves highly the speed and accuracy of detecting and analyzing soil moisture and pH acidity help your plants grow healthy. INDOOR AND OUTDOOR USEDesigned to be lightweight and portable, easy to carry for outdoor use. Ideal soil tester for home, garden, lawn, farm, plants, herbs and gardening. IMPORTANT TIPS The soil tester is designed for testing soil only, do not do not use it to test the water. Do not touch the stone or hard rock ground, if the ground is too hard and dry, it is easy to damage the probes. After use, please clean the probe. 3 in 1 Soil Moisture Sensor Proper soil environment is important for healthy plant growth. This soil tester is designed to know your plant condition better, detect soil moisture, help you know soil PH value, determine whether plants get enough sunshine to keep plants healthier Features: Material: ABS Plastic PH Range: 3.5-8 pH (3.5-6 .5 acid, 7-8 alkaline) Humidity range: 1-10 (1-3 dry, 4-7 Normal, 8-10 wet) Light intensity: 0-2000 lux (0-200 low, 200-500 low+, 500-1000 ordinary, 1000-2000 high) Product size: 29 * 5 * 3.7 cm / 11.42 * 1.97*1.46 inch Product Weight: 55g How To Use: Step 1: Proceed to moisture/pH/light as needed Step 2: Stick probes into soil 2-4 inches (2/3 of probes) Step 3: Record moisture / pH / light level in the dial Tips and Advice: 1. Do not touch the stone or hard objects because it will be easy to damage the probe 2. Do not use it to test pure water or other liquids. It can only be used to measure the ground 3. Do not leave the player in the ground for a long time 4. Remove the probe from the ground and wipe it clean after each use 5. If the soil is too dry, the indicator will not move