Description: 3 in 1 Test Kit: This meter integrated the function of soil moisture meter, soil ph meter and sunlight meter. Garden Assistant: You can know if you need to water the plant or if the soil ph valuae fits the plant or not or when to add sunlight for the plant by monitoring the soil moisture, measure soil pH value and checking daily sunlight source level. Double Needle Detection: the speed and accuracy of detecting and analyzing soil moisture and pH has been enhanced strongly, with these reliabel data Easy To Use: no battery required, it works by the probe and light sensor Portable: lightweight, easy to carry around for indoor & outdoor use. Specification: pH Range: 3.5-8 pH (3.5-6.5 Acid, 7-8 Alkaline) Moisture Range: 1-10 (1-3 Dry, 4-7 Nor, 8-10 Wet) Relative Light: 0-2000 lux (0-200 Low, 200-500 Low , 500-1000 Nor, 1000-2000 Hgh) How to Use: Step 1: Switch to moisture/pH/light position according to demand Step 2: Insert the probe into the soil about 2-4 inches Step 3: Adjust the position of the probe until the pointer on the dial swing slightly Step 4: Check moisture/pH/light level in the dial after 10 minutes Step 5: Remove probe from soil and wipe clean after each use Size Chart: 25.4x5.9cm/10.00x2.32inch Package Includes: 1 Piece Soil Moisture Sunlight Ph Test Meter Note: 1. Do not force it into very hard soil or touch hard objects since 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 soil 3. Do not leave the meter in the soil for a long time 4. Please wipe and clean the probe after each use 5. If the soil is too dry the indicator will not move, and water it before testing.