3 in 1 Function Soil Tester Moisture Meter Humidity Monitor Light PH Detector With Probe Features: 1. Made of material, durable in use. 2. Lightweight and mini size, portable to carry. 3. 3 in 1 function, can be used to test moisture, pH and light, convenient e. 4. Comes with probe, easy to operate and read the scale. 5. No battery needed, a good helper in gardening, suitable for testing soil moisture, pH and light. Specification: Condition: Material: Plastic Size: Approx. 26 x 8.8 x 6 cm / 10.2 x 3.5 x 2.4 inch Probe Length: Approx. 17cm / 6.7 inch Weight: Approx. 98g / 3.5 oz Instructions: 1. When measuring the pH and humidity of the soil, first insert the probe into the soil as deep as possible. (Above 10cm) 2. Move the button to MOIST, MOIST is the moisture button. The corresponding table is MOIST, DRY is dry, WET is wet. The value 1-3 (red part) indicates the need for watering, 4-7 (green part) is appropriate, 8-10 (blue part) is too wet. Please adjust the watering time according to the variety of plants. 3. Push the button to PH, PH is the pH button. The corresponding table is 8-3.5 value, ALKALINE is alkali, ACDIC is acid. The value 7 is basically neutral, the smaller the number, the higher the acidity. Please adjust the soil acidity and alkalinity according to plant species. 4. The LIGHT button is the illuminance. The measurement range is 0-2000 lumens. The larger the value, the stronger the illumination is. Please decide whether shading is necessary according to the variety of plants. 5. When using it, be careful not to touch the stone when inserting the electrode. Do not use too much force, otherwise it will easily damage the electrode. Wash the electrode after use. Soil pH: < 4.5 extremely strong acid 4.5-5.5 strong acid 5.5-6.5 acid 6.5-7.5 neutral 7.5-8.5 alkalinity 8.5-9.5 strong alkaline ＞9.5 extremely strong alkaline Package list: 1 x Soil Tester Note: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3. Before inserting the soil, please wet the soil with water. The probe should be inserted into the soil at a depth of 2/3 (above 10CM).