Soil Test Meter 3 in 1 for Garden Lawn, Pot, Humidity Sensor, Light pH Sensor Description: 3 in 1, for pH and lighting measurements, good helper in gardening, no batteries required, easy to use. PH meter: measures acidic or alkaline soil conditions. Moisture content meter: Measure the correct moisture content to avoid excessive or insufficient watering. Light quantity meter: measure the amount of light, plants need the right amount of lighting. Works well in vegetable/flower gardens, lawns and potted plants, for growing vegetables, fruits, flowers, etc. Specification: Material: alloy Green color Size: ok. 290x50x38mm/ 11,42x1,97x1,50 inch length: ok. 200 mm/7,87 inch How to use: 1. To measure the pH and moisture of the soil: insert the probe into the ground as much as possible so that the upper part remains at a depth of about 10 mm. 2. The MOIST key, the corresponding table is MOIST, this means that WET is wet, the value of 1-3 (red part) indicates the need for watering, 4-7 ( ) is suitable, you need to adjust the watering time according to the variety of plants , 8-10 ( ) indicates that it is too wet. 3. The PH key, the corresponding table are values 8-3,5, ALKALINE: alkaline, ACIDIC: the value 7 is generally neutral, the smaller the number indicates greater acidity, according to the plant Variety of soil pH regulation. 4. LIGHT, measuring range: 0-2000 lumens, the greater the value, the stronger the light, depending on the variety of plants, to decide whether shade is needed. The package includes: 1 piece 3-in-1 soil tester