We have our own factory,If you have the industrial products you want, you can find us, and we will try our best to help you find the products you want. We can help you produce the products you want. We also have a complete product supply system. For any product you want, please contact customer service. The customer service time is from 9 am to 8 pm. Welcome to consult. Method of Use: No Battery needed; simply insert the meter in the soil area you want to check and instantly get an accurate and precise reading! When measuring soil pH and humidity, left 1cm of probe to avoid destroying electrode. Multi-function：1.Let you know when to water. You will never over/under water your plants again with this tester. 2.Help you to control Ph level in soil, acidic or alkaline is suitable for your plants. 3.Help you to determine if plant getting adequate light. Indoor & Outdoor Use: This item is a perfect tool to test the soil conditions ( Moisture/Light/PH) of fruits, flowers, vegetables, shrubs, etc. with high accuracy and easy operation. You can take good care of your plants. Warm Tips: 1, Do not touch the stone or hard rock soil, if the soil is too hard and dry, easy to damage the probes. 2, Design for testing soil ONLY. 3,After using, need to clean and wipe the probes.4,measurement of moisture and pH must be viewed while the unit is in the soil,And the tester must be kept in the soil for 10 minutes or more. 18 Month : Our time is longer than others as our quality is , unconditionally or resend with any quality problems, life time friendly customer service, ONLY offered by Marge Plus store.  Functions: Measure soil MOISTURE, PH and LIGHT levels Easy To Use( No Battery needed, Plug and read): Step 1: Switch moisture/pH/light position Step 2: Stick 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: After 10 minutes, Note moisture/pH/light level in the dial Step 5: Remove probe from soil and wipe clean after each use Specifications: pH Range: 3.5-8 Ph (3.5-6.5 ACID, 7 NOR, 7-8 ALKALI) Moisture Range: 1-10 (1-3 DRY, 4-7 NOR, 8-10 WET) Relative Light: 0-2000 lux (0-200 LOW, 200-500LOW+, 500-1000 NOR 1000-2000 HGH) Size: 6 x 28 x 5cm Probe length: 18cm [7.1"] Copper probe diameter: 4.8mm Alu probe diameter: 5.1mm Distance between probes: 1.2cm Warm Tips: 1. To avoid damaging the probe, do not use in soil meter with stones and insert forcibly 2. Please wipe and clean the probe after each time using. 3. Don't leave the meter in the soil for a long time. 4. Designed for testing soil, don't use it to test pure water or other liquids. 5. The indicator will not move If the soil is too dry, please water the plant first and test again later. 6. Design for testing soil ONLY. We're so proud of you because you are proud of your plants! Plesse feel free to contact us if you have any question or you find what you get is defect. Package: 1 x 3 in 1 Soil Tester