Accurate measurement and convenient operation Fast detection and multiple functions probe, easy to carry Click the button to adjust the humidity value, brightness and PH No battery power, plug and play no consumption, high cost performance Measurement range: illumination, humidity value, PH value Application: Insert into the soil Application : warm wet garden garden garden greenhouse planting, etc., suitable for all kinds of gardening , to meet the soil testing of all kinds of planting Usage and Precautions: 1. moisten the soil with water inserting the probe into the soil. The probe should be inserted into 2/3 depth of the soil (more than 10cm), so that the measurement can be more accurate. Just sticking the pointy end in there 't work. It 't move Do not touch the stone when inserting the electrode. Do not use too much force, otherwise it will hurt the electrode . After use, the electrode should be washed in time. 2. Can not be inserted into the soil for a long time to avoid damage. 3. This product only tests soil and soil, etc. It is to dry flour, small , blocks, wood chips, etc Colour:green Material:plastic+metal Package Contents: 1 x Soil detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.